/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl
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This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 02:17:30,273 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2022-02-09 02:17:30,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2022-02-09 02:17:30,421 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-09 02:17:30,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 02:17:30,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 02:17:30,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 02:17:30,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 02:17:30,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 02:17:30,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 02:17:30,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 02:17:30,424 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 02:17:30,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 02:17:30,425 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 02:17:30,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 02:17:30,426 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 02:17:30,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 02:17:30,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 02:17:30,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 02:17:30,426 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 02:17:30,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 02:17:30,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:17:30,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 02:17:30,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 02:17:30,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 02:17:30,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 02:17:30,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 02:17:30,671 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-09 02:17:30,673 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-09 02:17:30,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl
[2022-02-09 02:17:30,674 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl'
[2022-02-09 02:17:30,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 02:17:30,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-09 02:17:30,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 02:17:30,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 02:17:30,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 02:17:30,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,724 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-09 02:17:30,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 02:17:30,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 02:17:30,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 02:17:30,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 02:17:30,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 02:17:30,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 02:17:30,741 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 02:17:30,741 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 02:17:30,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/1) ...
[2022-02-09 02:17:30,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:17:30,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 02:17:30,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-09 02:17:30,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-09 02:17:30,802 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration
[2022-02-09 02:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_1
[2022-02-09 02:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1
[2022-02-09 02:17:30,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration
[2022-02-09 02:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_2
[2022-02-09 02:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2
[2022-02-09 02:17:30,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration
[2022-02-09 02:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_3
[2022-02-09 02:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3
[2022-02-09 02:17:30,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration
[2022-02-09 02:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_4
[2022-02-09 02:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4
[2022-02-09 02:17:30,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration
[2022-02-09 02:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure set_0
[2022-02-09 02:17:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0
[2022-02-09 02:17:30,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-09 02:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 02:17:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 02:17:30,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration
[2022-02-09 02:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure set_5
[2022-02-09 02:17:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5
[2022-02-09 02:17:30,805 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 02:17:30,843 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 02:17:30,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 02:17:30,902 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 02:17:30,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 02:17:30,908 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-09 02:17:30,910 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:30 BoogieIcfgContainer
[2022-02-09 02:17:30,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 02:17:30,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 02:17:30,911 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 02:17:30,914 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 02:17:30,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:30" (1/2) ...
[2022-02-09 02:17:30,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6e980a and model type example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:17:30, skipping insertion in model container
[2022-02-09 02:17:30,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:30" (2/2) ...
[2022-02-09 02:17:30,917 INFO L111 eAbstractionObserver]: Analyzing ICFG example_6.bpl
[2022-02-09 02:17:30,922 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 02:17:30,922 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 02:17:30,922 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 02:17:30,922 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 02:17:30,989 INFO L148 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions.
[2022-02-09 02:17:31,024 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 02:17:31,030 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 02:17:31,030 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2022-02-09 02:17:31,039 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 63 transitions, 264 flow
[2022-02-09 02:17:31,402 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:31,474 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:31,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:31,475 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:31,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:31,484 INFO L85 PathProgramCache]: Analyzing trace with hash 880898761, now seen corresponding path program 1 times
[2022-02-09 02:17:31,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:31,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065648317]
[2022-02-09 02:17:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:31,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:31,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:31,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065648317]
[2022-02-09 02:17:31,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065648317] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:31,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:31,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:31,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363601507]
[2022-02-09 02:17:31,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:31,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:31,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:31,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:31,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:31,767 INFO L87 Difference]: Start difference. First operand has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,006 INFO L93 Difference]: Finished difference Result 3543 states and 15328 transitions.
[2022-02-09 02:17:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,073 INFO L225 Difference]: With dead ends: 3543
[2022-02-09 02:17:32,074 INFO L226 Difference]: Without dead ends: 3543
[2022-02-09 02:17:32,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:32,083 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:32,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states.
[2022-02-09 02:17:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3543.
[2022-02-09 02:17:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3542 states have (on average 4.327498588368154) internal successors, (15328), 3542 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 15328 transitions.
[2022-02-09 02:17:32,432 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 15328 transitions. Word has length 25
[2022-02-09 02:17:32,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,433 INFO L470 AbstractCegarLoop]: Abstraction has 3543 states and 15328 transitions.
[2022-02-09 02:17:32,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 15328 transitions.
[2022-02-09 02:17:32,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:32,454 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:32,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 02:17:32,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:32,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash -203118425, now seen corresponding path program 1 times
[2022-02-09 02:17:32,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366698385]
[2022-02-09 02:17:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:32,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:32,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366698385]
[2022-02-09 02:17:32,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366698385] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:32,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:32,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:32,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618948004]
[2022-02-09 02:17:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:32,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:32,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:32,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:32,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:32,525 INFO L87 Difference]: Start difference. First operand 3543 states and 15328 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,647 INFO L93 Difference]: Finished difference Result 2976 states and 12439 transitions.
[2022-02-09 02:17:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:32,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,678 INFO L225 Difference]: With dead ends: 2976
[2022-02-09 02:17:32,678 INFO L226 Difference]: Without dead ends: 2976
[2022-02-09 02:17:32,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:32,686 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:32,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 21 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states.
[2022-02-09 02:17:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976.
[2022-02-09 02:17:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 4.181176470588236) internal successors, (12439), 2975 states have internal predecessors, (12439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 12439 transitions.
[2022-02-09 02:17:32,894 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 12439 transitions. Word has length 25
[2022-02-09 02:17:32,894 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,895 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 12439 transitions.
[2022-02-09 02:17:32,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 12439 transitions.
[2022-02-09 02:17:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:32,908 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:32,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-09 02:17:32,909 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash 872033107, now seen corresponding path program 1 times
[2022-02-09 02:17:32,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839647190]
[2022-02-09 02:17:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:32,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:32,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839647190]
[2022-02-09 02:17:32,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839647190] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:32,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:32,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:32,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57671798]
[2022-02-09 02:17:32,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:32,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:32,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:32,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:32,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:32,946 INFO L87 Difference]: Start difference. First operand 2976 states and 12439 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,010 INFO L93 Difference]: Finished difference Result 2238 states and 9226 transitions.
[2022-02-09 02:17:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:33,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,029 INFO L225 Difference]: With dead ends: 2238
[2022-02-09 02:17:33,029 INFO L226 Difference]: Without dead ends: 2238
[2022-02-09 02:17:33,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:33,035 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:33,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 29 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:33,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states.
[2022-02-09 02:17:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238.
[2022-02-09 02:17:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 2237 states have (on average 4.124273580688422) internal successors, (9226), 2237 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 9226 transitions.
[2022-02-09 02:17:33,120 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 9226 transitions. Word has length 25
[2022-02-09 02:17:33,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,120 INFO L470 AbstractCegarLoop]: Abstraction has 2238 states and 9226 transitions.
[2022-02-09 02:17:33,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 9226 transitions.
[2022-02-09 02:17:33,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:33,130 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-09 02:17:33,131 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,132 INFO L85 PathProgramCache]: Analyzing trace with hash 296100981, now seen corresponding path program 1 times
[2022-02-09 02:17:33,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537780520]
[2022-02-09 02:17:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:33,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537780520]
[2022-02-09 02:17:33,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537780520] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:33,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636355740]
[2022-02-09 02:17:33,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:33,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:33,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:33,162 INFO L87 Difference]: Start difference. First operand 2238 states and 9226 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,214 INFO L93 Difference]: Finished difference Result 1701 states and 6967 transitions.
[2022-02-09 02:17:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:33,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,228 INFO L225 Difference]: With dead ends: 1701
[2022-02-09 02:17:33,229 INFO L226 Difference]: Without dead ends: 1701
[2022-02-09 02:17:33,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:33,235 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:33,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states.
[2022-02-09 02:17:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701.
[2022-02-09 02:17:33,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 4.098235294117647) internal successors, (6967), 1700 states have internal predecessors, (6967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 6967 transitions.
[2022-02-09 02:17:33,347 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 6967 transitions. Word has length 25
[2022-02-09 02:17:33,347 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,347 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 6967 transitions.
[2022-02-09 02:17:33,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 6967 transitions.
[2022-02-09 02:17:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:33,354 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-09 02:17:33,354 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:33,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash -540031151, now seen corresponding path program 1 times
[2022-02-09 02:17:33,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967159946]
[2022-02-09 02:17:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:33,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967159946]
[2022-02-09 02:17:33,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967159946] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:33,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153778249]
[2022-02-09 02:17:33,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:33,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:33,403 INFO L87 Difference]: Start difference. First operand 1701 states and 6967 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,451 INFO L93 Difference]: Finished difference Result 1458 states and 5833 transitions.
[2022-02-09 02:17:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,464 INFO L225 Difference]: With dead ends: 1458
[2022-02-09 02:17:33,465 INFO L226 Difference]: Without dead ends: 1458
[2022-02-09 02:17:33,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:33,465 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:33,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 17 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states.
[2022-02-09 02:17:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458.
[2022-02-09 02:17:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 4.003431708991077) internal successors, (5833), 1457 states have internal predecessors, (5833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5833 transitions.
[2022-02-09 02:17:33,531 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5833 transitions. Word has length 25
[2022-02-09 02:17:33,531 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,531 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5833 transitions.
[2022-02-09 02:17:33,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5833 transitions.
[2022-02-09 02:17:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:33,566 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-09 02:17:33,568 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash 377713333, now seen corresponding path program 1 times
[2022-02-09 02:17:33,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228430147]
[2022-02-09 02:17:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:33,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228430147]
[2022-02-09 02:17:33,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228430147] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:33,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641923770]
[2022-02-09 02:17:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:33,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:33,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:33,905 INFO L87 Difference]: Start difference. First operand 1458 states and 5833 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,106 INFO L93 Difference]: Finished difference Result 3167 states and 11759 transitions.
[2022-02-09 02:17:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:34,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,136 INFO L225 Difference]: With dead ends: 3167
[2022-02-09 02:17:34,137 INFO L226 Difference]: Without dead ends: 3008
[2022-02-09 02:17:34,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:34,138 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:34,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 172 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states.
[2022-02-09 02:17:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1530.
[2022-02-09 02:17:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1529 states have (on average 3.998037933289732) internal successors, (6113), 1529 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6113 transitions.
[2022-02-09 02:17:34,209 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6113 transitions. Word has length 25
[2022-02-09 02:17:34,210 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,210 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6113 transitions.
[2022-02-09 02:17:34,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6113 transitions.
[2022-02-09 02:17:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:34,217 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:34,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-09 02:17:34,217 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:34,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash -630584651, now seen corresponding path program 2 times
[2022-02-09 02:17:34,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742324304]
[2022-02-09 02:17:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:34,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:34,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:34,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742324304]
[2022-02-09 02:17:34,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742324304] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:34,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:34,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:34,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394576675]
[2022-02-09 02:17:34,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:34,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:34,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:34,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:34,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:34,508 INFO L87 Difference]: Start difference. First operand 1530 states and 6113 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,697 INFO L93 Difference]: Finished difference Result 3230 states and 11966 transitions.
[2022-02-09 02:17:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,711 INFO L225 Difference]: With dead ends: 3230
[2022-02-09 02:17:34,711 INFO L226 Difference]: Without dead ends: 2976
[2022-02-09 02:17:34,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:34,715 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:34,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 143 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states.
[2022-02-09 02:17:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1498.
[2022-02-09 02:17:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.997995991983968) internal successors, (5985), 1497 states have internal predecessors, (5985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5985 transitions.
[2022-02-09 02:17:34,785 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5985 transitions. Word has length 25
[2022-02-09 02:17:34,785 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,785 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5985 transitions.
[2022-02-09 02:17:34,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5985 transitions.
[2022-02-09 02:17:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:34,791 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:34,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-09 02:17:34,791 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash 416328017, now seen corresponding path program 3 times
[2022-02-09 02:17:34,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050579515]
[2022-02-09 02:17:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050579515]
[2022-02-09 02:17:35,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050579515] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:35,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644907564]
[2022-02-09 02:17:35,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:35,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:35,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,022 INFO L87 Difference]: Start difference. First operand 1498 states and 5985 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,190 INFO L93 Difference]: Finished difference Result 3118 states and 11565 transitions.
[2022-02-09 02:17:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:35,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:35,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,204 INFO L225 Difference]: With dead ends: 3118
[2022-02-09 02:17:35,204 INFO L226 Difference]: Without dead ends: 2959
[2022-02-09 02:17:35,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:35,205 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 101 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:35,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 163 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:35,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states.
[2022-02-09 02:17:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1514.
[2022-02-09 02:17:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.9874421678783873) internal successors, (6033), 1513 states have internal predecessors, (6033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6033 transitions.
[2022-02-09 02:17:35,267 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6033 transitions. Word has length 25
[2022-02-09 02:17:35,268 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:35,268 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6033 transitions.
[2022-02-09 02:17:35,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6033 transitions.
[2022-02-09 02:17:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:35,275 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:35,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:35,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-09 02:17:35,276 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:35,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:35,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1173606733, now seen corresponding path program 4 times
[2022-02-09 02:17:35,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:35,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936905680]
[2022-02-09 02:17:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:35,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936905680]
[2022-02-09 02:17:35,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936905680] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:35,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10782725]
[2022-02-09 02:17:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:35,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,462 INFO L87 Difference]: Start difference. First operand 1514 states and 6033 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,732 INFO L93 Difference]: Finished difference Result 3148 states and 11658 transitions.
[2022-02-09 02:17:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,747 INFO L225 Difference]: With dead ends: 3148
[2022-02-09 02:17:35,747 INFO L226 Difference]: Without dead ends: 2943
[2022-02-09 02:17:35,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:35,748 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:35,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 164 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-09 02:17:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states.
[2022-02-09 02:17:35,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1498.
[2022-02-09 02:17:35,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9926519706078825) internal successors, (5977), 1497 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5977 transitions.
[2022-02-09 02:17:35,836 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5977 transitions. Word has length 25
[2022-02-09 02:17:35,836 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:35,836 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5977 transitions.
[2022-02-09 02:17:35,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5977 transitions.
[2022-02-09 02:17:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:35,841 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:35,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:35,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-02-09 02:17:35,842 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1811770219, now seen corresponding path program 5 times
[2022-02-09 02:17:35,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:35,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592100557]
[2022-02-09 02:17:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:35,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592100557]
[2022-02-09 02:17:36,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592100557] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:36,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833856940]
[2022-02-09 02:17:36,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:36,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:36,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,058 INFO L87 Difference]: Start difference. First operand 1498 states and 5977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,271 INFO L93 Difference]: Finished difference Result 3258 states and 12063 transitions.
[2022-02-09 02:17:36,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:36,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:36,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,288 INFO L225 Difference]: With dead ends: 3258
[2022-02-09 02:17:36,288 INFO L226 Difference]: Without dead ends: 3069
[2022-02-09 02:17:36,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:36,289 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:36,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 151 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states.
[2022-02-09 02:17:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 1561.
[2022-02-09 02:17:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 3.9641025641025642) internal successors, (6184), 1560 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 6184 transitions.
[2022-02-09 02:17:36,351 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 6184 transitions. Word has length 25
[2022-02-09 02:17:36,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,352 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 6184 transitions.
[2022-02-09 02:17:36,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 6184 transitions.
[2022-02-09 02:17:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:36,357 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:36,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-02-09 02:17:36,357 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1513717261, now seen corresponding path program 6 times
[2022-02-09 02:17:36,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332786622]
[2022-02-09 02:17:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332786622]
[2022-02-09 02:17:36,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332786622] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:36,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659278530]
[2022-02-09 02:17:36,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:36,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,557 INFO L87 Difference]: Start difference. First operand 1561 states and 6184 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,707 INFO L93 Difference]: Finished difference Result 3291 states and 12146 transitions.
[2022-02-09 02:17:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,722 INFO L225 Difference]: With dead ends: 3291
[2022-02-09 02:17:36,722 INFO L226 Difference]: Without dead ends: 2982
[2022-02-09 02:17:36,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:36,723 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 122 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:36,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 138 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states.
[2022-02-09 02:17:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1474.
[2022-02-09 02:17:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9979633401221997) internal successors, (5889), 1473 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5889 transitions.
[2022-02-09 02:17:36,792 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5889 transitions. Word has length 25
[2022-02-09 02:17:36,792 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,792 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5889 transitions.
[2022-02-09 02:17:36,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5889 transitions.
[2022-02-09 02:17:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:36,802 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:36,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-02-09 02:17:36,803 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:36,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2045589173, now seen corresponding path program 7 times
[2022-02-09 02:17:36,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123569522]
[2022-02-09 02:17:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123569522]
[2022-02-09 02:17:36,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123569522] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:36,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688108513]
[2022-02-09 02:17:36,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:36,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,000 INFO L87 Difference]: Start difference. First operand 1474 states and 5889 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,149 INFO L93 Difference]: Finished difference Result 3140 states and 11663 transitions.
[2022-02-09 02:17:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:37,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,162 INFO L225 Difference]: With dead ends: 3140
[2022-02-09 02:17:37,163 INFO L226 Difference]: Without dead ends: 2981
[2022-02-09 02:17:37,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:37,164 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 110 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:37,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 148 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states.
[2022-02-09 02:17:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1522.
[2022-02-09 02:17:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1521 states have (on average 3.992767915844839) internal successors, (6073), 1521 states have internal predecessors, (6073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 6073 transitions.
[2022-02-09 02:17:37,227 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 6073 transitions. Word has length 25
[2022-02-09 02:17:37,227 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,227 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 6073 transitions.
[2022-02-09 02:17:37,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 6073 transitions.
[2022-02-09 02:17:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:37,232 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:37,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-02-09 02:17:37,232 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:37,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1037291189, now seen corresponding path program 8 times
[2022-02-09 02:17:37,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550484436]
[2022-02-09 02:17:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:37,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550484436]
[2022-02-09 02:17:37,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550484436] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:37,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705652654]
[2022-02-09 02:17:37,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:37,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,426 INFO L87 Difference]: Start difference. First operand 1522 states and 6073 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,611 INFO L93 Difference]: Finished difference Result 3203 states and 11870 transitions.
[2022-02-09 02:17:37,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:37,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,626 INFO L225 Difference]: With dead ends: 3203
[2022-02-09 02:17:37,627 INFO L226 Difference]: Without dead ends: 2949
[2022-02-09 02:17:37,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:37,628 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:37,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 185 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states.
[2022-02-09 02:17:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1490.
[2022-02-09 02:17:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.992612491605104) internal successors, (5945), 1489 states have internal predecessors, (5945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5945 transitions.
[2022-02-09 02:17:37,701 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5945 transitions. Word has length 25
[2022-02-09 02:17:37,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,701 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5945 transitions.
[2022-02-09 02:17:37,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5945 transitions.
[2022-02-09 02:17:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:37,706 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:37,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-02-09 02:17:37,707 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:37,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1260344617, now seen corresponding path program 9 times
[2022-02-09 02:17:37,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013959024]
[2022-02-09 02:17:37,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:37,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013959024]
[2022-02-09 02:17:37,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013959024] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:37,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255129552]
[2022-02-09 02:17:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:37,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,883 INFO L87 Difference]: Start difference. First operand 1490 states and 5945 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,046 INFO L93 Difference]: Finished difference Result 3089 states and 11464 transitions.
[2022-02-09 02:17:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:38,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,055 INFO L225 Difference]: With dead ends: 3089
[2022-02-09 02:17:38,055 INFO L226 Difference]: Without dead ends: 2930
[2022-02-09 02:17:38,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:38,056 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 165 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states.
[2022-02-09 02:17:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1506.
[2022-02-09 02:17:38,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9820598006644516) internal successors, (5993), 1505 states have internal predecessors, (5993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5993 transitions.
[2022-02-09 02:17:38,115 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5993 transitions. Word has length 25
[2022-02-09 02:17:38,116 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,116 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5993 transitions.
[2022-02-09 02:17:38,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5993 transitions.
[2022-02-09 02:17:38,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:38,121 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-02-09 02:17:38,121 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:38,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash -252046633, now seen corresponding path program 10 times
[2022-02-09 02:17:38,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474047547]
[2022-02-09 02:17:38,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:38,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474047547]
[2022-02-09 02:17:38,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474047547] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:38,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431253218]
[2022-02-09 02:17:38,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:38,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:38,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,342 INFO L87 Difference]: Start difference. First operand 1506 states and 5993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,497 INFO L93 Difference]: Finished difference Result 3117 states and 11552 transitions.
[2022-02-09 02:17:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:38,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,504 INFO L225 Difference]: With dead ends: 3117
[2022-02-09 02:17:38,504 INFO L226 Difference]: Without dead ends: 2914
[2022-02-09 02:17:38,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:38,505 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 156 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states.
[2022-02-09 02:17:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1490.
[2022-02-09 02:17:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.987239758226998) internal successors, (5937), 1489 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5937 transitions.
[2022-02-09 02:17:38,556 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5937 transitions. Word has length 25
[2022-02-09 02:17:38,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,557 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5937 transitions.
[2022-02-09 02:17:38,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5937 transitions.
[2022-02-09 02:17:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:38,561 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-02-09 02:17:38,561 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1436199639, now seen corresponding path program 11 times
[2022-02-09 02:17:38,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342203528]
[2022-02-09 02:17:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:38,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342203528]
[2022-02-09 02:17:38,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342203528] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:38,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963141856]
[2022-02-09 02:17:38,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:38,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:38,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,731 INFO L87 Difference]: Start difference. First operand 1490 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,892 INFO L93 Difference]: Finished difference Result 3210 states and 11906 transitions.
[2022-02-09 02:17:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,899 INFO L225 Difference]: With dead ends: 3210
[2022-02-09 02:17:38,899 INFO L226 Difference]: Without dead ends: 3023
[2022-02-09 02:17:38,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:38,900 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 151 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states.
[2022-02-09 02:17:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1536.
[2022-02-09 02:17:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 3.9700325732899024) internal successors, (6094), 1535 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 6094 transitions.
[2022-02-09 02:17:38,948 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 6094 transitions. Word has length 25
[2022-02-09 02:17:38,948 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,948 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 6094 transitions.
[2022-02-09 02:17:38,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 6094 transitions.
[2022-02-09 02:17:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:38,952 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-02-09 02:17:38,953 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1083060149, now seen corresponding path program 12 times
[2022-02-09 02:17:38,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002123806]
[2022-02-09 02:17:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:39,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002123806]
[2022-02-09 02:17:39,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002123806] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:39,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966291933]
[2022-02-09 02:17:39,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:39,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:39,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,127 INFO L87 Difference]: Start difference. First operand 1536 states and 6094 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,289 INFO L93 Difference]: Finished difference Result 3245 states and 11995 transitions.
[2022-02-09 02:17:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,297 INFO L225 Difference]: With dead ends: 3245
[2022-02-09 02:17:39,298 INFO L226 Difference]: Without dead ends: 2961
[2022-02-09 02:17:39,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:39,298 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:39,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states.
[2022-02-09 02:17:39,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1474.
[2022-02-09 02:17:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.992532247114732) internal successors, (5881), 1473 states have internal predecessors, (5881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5881 transitions.
[2022-02-09 02:17:39,347 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5881 transitions. Word has length 25
[2022-02-09 02:17:39,347 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,347 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5881 transitions.
[2022-02-09 02:17:39,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5881 transitions.
[2022-02-09 02:17:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:39,352 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:39,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-02-09 02:17:39,352 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash 407565713, now seen corresponding path program 13 times
[2022-02-09 02:17:39,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811177453]
[2022-02-09 02:17:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:39,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811177453]
[2022-02-09 02:17:39,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811177453] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:39,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143849106]
[2022-02-09 02:17:39,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:39,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:39,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,523 INFO L87 Difference]: Start difference. First operand 1474 states and 5881 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,678 INFO L93 Difference]: Finished difference Result 3018 states and 11199 transitions.
[2022-02-09 02:17:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:39,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:39,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,688 INFO L225 Difference]: With dead ends: 3018
[2022-02-09 02:17:39,688 INFO L226 Difference]: Without dead ends: 2859
[2022-02-09 02:17:39,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:39,689 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 108 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:39,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 153 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states.
[2022-02-09 02:17:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1498.
[2022-02-09 02:17:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.984635938543754) internal successors, (5965), 1497 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5965 transitions.
[2022-02-09 02:17:39,731 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5965 transitions. Word has length 25
[2022-02-09 02:17:39,731 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,731 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5965 transitions.
[2022-02-09 02:17:39,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5965 transitions.
[2022-02-09 02:17:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:39,735 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:39,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-02-09 02:17:39,736 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1182369037, now seen corresponding path program 14 times
[2022-02-09 02:17:39,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947529104]
[2022-02-09 02:17:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:39,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947529104]
[2022-02-09 02:17:39,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947529104] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:39,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969374933]
[2022-02-09 02:17:39,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:39,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:39,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,891 INFO L87 Difference]: Start difference. First operand 1498 states and 5965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,052 INFO L93 Difference]: Finished difference Result 3048 states and 11292 transitions.
[2022-02-09 02:17:40,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:40,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,063 INFO L225 Difference]: With dead ends: 3048
[2022-02-09 02:17:40,063 INFO L226 Difference]: Without dead ends: 2843
[2022-02-09 02:17:40,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:40,064 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 161 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states.
[2022-02-09 02:17:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1482.
[2022-02-09 02:17:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9898717083051993) internal successors, (5909), 1481 states have internal predecessors, (5909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5909 transitions.
[2022-02-09 02:17:40,113 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5909 transitions. Word has length 25
[2022-02-09 02:17:40,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,113 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5909 transitions.
[2022-02-09 02:17:40,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5909 transitions.
[2022-02-09 02:17:40,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:40,118 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-02-09 02:17:40,118 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:40,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1488628339, now seen corresponding path program 15 times
[2022-02-09 02:17:40,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336033411]
[2022-02-09 02:17:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:40,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336033411]
[2022-02-09 02:17:40,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336033411] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:40,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458686082]
[2022-02-09 02:17:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:40,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,294 INFO L87 Difference]: Start difference. First operand 1482 states and 5909 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,442 INFO L93 Difference]: Finished difference Result 3016 states and 11186 transitions.
[2022-02-09 02:17:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:40,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,453 INFO L225 Difference]: With dead ends: 3016
[2022-02-09 02:17:40,454 INFO L226 Difference]: Without dead ends: 2857
[2022-02-09 02:17:40,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:40,455 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 155 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states.
[2022-02-09 02:17:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1498.
[2022-02-09 02:17:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.979291917167669) internal successors, (5957), 1497 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5957 transitions.
[2022-02-09 02:17:40,500 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5957 transitions. Word has length 25
[2022-02-09 02:17:40,500 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,500 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5957 transitions.
[2022-02-09 02:17:40,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5957 transitions.
[2022-02-09 02:17:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:40,505 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-02-09 02:17:40,506 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1798040973, now seen corresponding path program 16 times
[2022-02-09 02:17:40,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493198643]
[2022-02-09 02:17:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:40,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493198643]
[2022-02-09 02:17:40,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493198643] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:40,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921173200]
[2022-02-09 02:17:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:40,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:40,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,692 INFO L87 Difference]: Start difference. First operand 1498 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,851 INFO L93 Difference]: Finished difference Result 3044 states and 11274 transitions.
[2022-02-09 02:17:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,860 INFO L225 Difference]: With dead ends: 3044
[2022-02-09 02:17:40,861 INFO L226 Difference]: Without dead ends: 2841
[2022-02-09 02:17:40,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:40,862 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 143 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states.
[2022-02-09 02:17:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1482.
[2022-02-09 02:17:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9844699527346386) internal successors, (5901), 1481 states have internal predecessors, (5901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5901 transitions.
[2022-02-09 02:17:40,906 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5901 transitions. Word has length 25
[2022-02-09 02:17:40,906 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,906 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5901 transitions.
[2022-02-09 02:17:40,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5901 transitions.
[2022-02-09 02:17:40,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:40,910 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-02-09 02:17:40,911 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1389177003, now seen corresponding path program 17 times
[2022-02-09 02:17:40,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322583298]
[2022-02-09 02:17:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:41,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322583298]
[2022-02-09 02:17:41,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322583298] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:41,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593372417]
[2022-02-09 02:17:41,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:41,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:41,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,093 INFO L87 Difference]: Start difference. First operand 1482 states and 5901 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,269 INFO L93 Difference]: Finished difference Result 3090 states and 11455 transitions.
[2022-02-09 02:17:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,279 INFO L225 Difference]: With dead ends: 3090
[2022-02-09 02:17:41,279 INFO L226 Difference]: Without dead ends: 2901
[2022-02-09 02:17:41,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:41,280 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:41,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 169 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states.
[2022-02-09 02:17:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1512.
[2022-02-09 02:17:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 3.966909331568498) internal successors, (5994), 1511 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5994 transitions.
[2022-02-09 02:17:41,327 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5994 transitions. Word has length 25
[2022-02-09 02:17:41,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,327 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5994 transitions.
[2022-02-09 02:17:41,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5994 transitions.
[2022-02-09 02:17:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:41,331 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:41,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-02-09 02:17:41,332 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:41,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,333 INFO L85 PathProgramCache]: Analyzing trace with hash 862453299, now seen corresponding path program 18 times
[2022-02-09 02:17:41,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587583028]
[2022-02-09 02:17:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:41,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587583028]
[2022-02-09 02:17:41,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587583028] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:41,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780513801]
[2022-02-09 02:17:41,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:41,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:41,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,502 INFO L87 Difference]: Start difference. First operand 1512 states and 5994 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,658 INFO L93 Difference]: Finished difference Result 3088 states and 11420 transitions.
[2022-02-09 02:17:41,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:41,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,668 INFO L225 Difference]: With dead ends: 3088
[2022-02-09 02:17:41,668 INFO L226 Difference]: Without dead ends: 2863
[2022-02-09 02:17:41,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:41,669 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:41,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 155 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states.
[2022-02-09 02:17:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1474.
[2022-02-09 02:17:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.989816700610998) internal successors, (5877), 1473 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5877 transitions.
[2022-02-09 02:17:41,713 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5877 transitions. Word has length 25
[2022-02-09 02:17:41,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,713 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5877 transitions.
[2022-02-09 02:17:41,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5877 transitions.
[2022-02-09 02:17:41,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:41,717 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:41,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-02-09 02:17:41,717 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:41,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,718 INFO L85 PathProgramCache]: Analyzing trace with hash -483963721, now seen corresponding path program 19 times
[2022-02-09 02:17:41,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847276992]
[2022-02-09 02:17:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:41,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847276992]
[2022-02-09 02:17:41,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847276992] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:41,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931758285]
[2022-02-09 02:17:41,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:41,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:41,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,886 INFO L87 Difference]: Start difference. First operand 1474 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,064 INFO L93 Difference]: Finished difference Result 3261 states and 12104 transitions.
[2022-02-09 02:17:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:42,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:42,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,073 INFO L225 Difference]: With dead ends: 3261
[2022-02-09 02:17:42,073 INFO L226 Difference]: Without dead ends: 3072
[2022-02-09 02:17:42,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:42,074 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:42,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 179 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states.
[2022-02-09 02:17:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 1543.
[2022-02-09 02:17:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1542 states have (on average 3.970817120622568) internal successors, (6123), 1542 states have internal predecessors, (6123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 6123 transitions.
[2022-02-09 02:17:42,137 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 6123 transitions. Word has length 25
[2022-02-09 02:17:42,138 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,138 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 6123 transitions.
[2022-02-09 02:17:42,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 6123 transitions.
[2022-02-09 02:17:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:42,143 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-02-09 02:17:42,143 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1767666581, now seen corresponding path program 20 times
[2022-02-09 02:17:42,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570939826]
[2022-02-09 02:17:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:42,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570939826]
[2022-02-09 02:17:42,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570939826] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:42,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400092843]
[2022-02-09 02:17:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:42,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:42,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,293 INFO L87 Difference]: Start difference. First operand 1543 states and 6123 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,462 INFO L93 Difference]: Finished difference Result 3259 states and 12069 transitions.
[2022-02-09 02:17:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:42,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,471 INFO L225 Difference]: With dead ends: 3259
[2022-02-09 02:17:42,471 INFO L226 Difference]: Without dead ends: 3042
[2022-02-09 02:17:42,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:42,472 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:42,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states.
[2022-02-09 02:17:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 1513.
[2022-02-09 02:17:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.9781746031746033) internal successors, (6015), 1512 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 6015 transitions.
[2022-02-09 02:17:42,547 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 6015 transitions. Word has length 25
[2022-02-09 02:17:42,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,547 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 6015 transitions.
[2022-02-09 02:17:42,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 6015 transitions.
[2022-02-09 02:17:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:42,551 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2022-02-09 02:17:42,552 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:42,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,552 INFO L85 PathProgramCache]: Analyzing trace with hash -548597227, now seen corresponding path program 21 times
[2022-02-09 02:17:42,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938413765]
[2022-02-09 02:17:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:42,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938413765]
[2022-02-09 02:17:42,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938413765] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:42,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241665442]
[2022-02-09 02:17:42,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:42,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:42,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,742 INFO L87 Difference]: Start difference. First operand 1513 states and 6015 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,889 INFO L93 Difference]: Finished difference Result 3329 states and 12323 transitions.
[2022-02-09 02:17:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:42,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:42,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,898 INFO L225 Difference]: With dead ends: 3329
[2022-02-09 02:17:42,898 INFO L226 Difference]: Without dead ends: 3140
[2022-02-09 02:17:42,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:42,899 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 139 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:42,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 129 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states.
[2022-02-09 02:17:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 1576.
[2022-02-09 02:17:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.9504761904761905) internal successors, (6222), 1575 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 6222 transitions.
[2022-02-09 02:17:42,948 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 6222 transitions. Word has length 25
[2022-02-09 02:17:42,949 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,949 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 6222 transitions.
[2022-02-09 02:17:42,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 6222 transitions.
[2022-02-09 02:17:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:42,953 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-02-09 02:17:42,954 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:42,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1104385515, now seen corresponding path program 22 times
[2022-02-09 02:17:42,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798902081]
[2022-02-09 02:17:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798902081]
[2022-02-09 02:17:43,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798902081] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:43,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529181417]
[2022-02-09 02:17:43,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:43,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:43,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,114 INFO L87 Difference]: Start difference. First operand 1576 states and 6222 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,260 INFO L93 Difference]: Finished difference Result 3362 states and 12406 transitions.
[2022-02-09 02:17:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,267 INFO L225 Difference]: With dead ends: 3362
[2022-02-09 02:17:43,267 INFO L226 Difference]: Without dead ends: 3077
[2022-02-09 02:17:43,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:43,268 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 158 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states.
[2022-02-09 02:17:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1513.
[2022-02-09 02:17:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.9576719576719577) internal successors, (5984), 1512 states have internal predecessors, (5984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 5984 transitions.
[2022-02-09 02:17:43,308 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 5984 transitions. Word has length 25
[2022-02-09 02:17:43,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,308 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 5984 transitions.
[2022-02-09 02:17:43,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 5984 transitions.
[2022-02-09 02:17:43,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:43,310 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:43,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2022-02-09 02:17:43,311 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:43,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,311 INFO L85 PathProgramCache]: Analyzing trace with hash 433750387, now seen corresponding path program 23 times
[2022-02-09 02:17:43,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782761203]
[2022-02-09 02:17:43,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782761203]
[2022-02-09 02:17:43,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782761203] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:43,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846156962]
[2022-02-09 02:17:43,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:43,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:43,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,468 INFO L87 Difference]: Start difference. First operand 1513 states and 5984 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,605 INFO L93 Difference]: Finished difference Result 3308 states and 12231 transitions.
[2022-02-09 02:17:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:43,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,613 INFO L225 Difference]: With dead ends: 3308
[2022-02-09 02:17:43,613 INFO L226 Difference]: Without dead ends: 3121
[2022-02-09 02:17:43,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:43,614 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 116 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states.
[2022-02-09 02:17:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1559.
[2022-02-09 02:17:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 3.941591784338896) internal successors, (6141), 1558 states have internal predecessors, (6141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 6141 transitions.
[2022-02-09 02:17:43,661 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 6141 transitions. Word has length 25
[2022-02-09 02:17:43,661 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,661 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 6141 transitions.
[2022-02-09 02:17:43,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 6141 transitions.
[2022-02-09 02:17:43,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:43,666 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:43,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2022-02-09 02:17:43,666 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:43,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1923639211, now seen corresponding path program 24 times
[2022-02-09 02:17:43,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544845567]
[2022-02-09 02:17:43,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544845567]
[2022-02-09 02:17:43,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544845567] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:43,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40481373]
[2022-02-09 02:17:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:43,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,825 INFO L87 Difference]: Start difference. First operand 1559 states and 6141 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,968 INFO L93 Difference]: Finished difference Result 3343 states and 12320 transitions.
[2022-02-09 02:17:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,977 INFO L225 Difference]: With dead ends: 3343
[2022-02-09 02:17:43,977 INFO L226 Difference]: Without dead ends: 3020
[2022-02-09 02:17:43,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:43,978 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states.
[2022-02-09 02:17:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 1458.
[2022-02-09 02:17:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9979409746053536) internal successors, (5825), 1457 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5825 transitions.
[2022-02-09 02:17:44,012 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5825 transitions. Word has length 25
[2022-02-09 02:17:44,012 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,012 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5825 transitions.
[2022-02-09 02:17:44,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5825 transitions.
[2022-02-09 02:17:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:44,015 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:44,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2022-02-09 02:17:44,015 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -409784651, now seen corresponding path program 25 times
[2022-02-09 02:17:44,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353473003]
[2022-02-09 02:17:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353473003]
[2022-02-09 02:17:44,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353473003] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:44,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166774694]
[2022-02-09 02:17:44,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:44,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:44,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,176 INFO L87 Difference]: Start difference. First operand 1458 states and 5825 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,322 INFO L93 Difference]: Finished difference Result 3146 states and 11689 transitions.
[2022-02-09 02:17:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,332 INFO L225 Difference]: With dead ends: 3146
[2022-02-09 02:17:44,332 INFO L226 Difference]: Without dead ends: 2987
[2022-02-09 02:17:44,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:44,333 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:44,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 160 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states.
[2022-02-09 02:17:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1526.
[2022-02-09 02:17:44,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 3.9954098360655736) internal successors, (6093), 1525 states have internal predecessors, (6093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6093 transitions.
[2022-02-09 02:17:44,375 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6093 transitions. Word has length 25
[2022-02-09 02:17:44,375 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,376 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6093 transitions.
[2022-02-09 02:17:44,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6093 transitions.
[2022-02-09 02:17:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:44,379 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:44,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2022-02-09 02:17:44,380 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:44,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1418082635, now seen corresponding path program 26 times
[2022-02-09 02:17:44,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157549311]
[2022-02-09 02:17:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157549311]
[2022-02-09 02:17:44,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157549311] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:44,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312812071]
[2022-02-09 02:17:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:44,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,545 INFO L87 Difference]: Start difference. First operand 1526 states and 6093 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,678 INFO L93 Difference]: Finished difference Result 3209 states and 11896 transitions.
[2022-02-09 02:17:44,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:44,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:44,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,686 INFO L225 Difference]: With dead ends: 3209
[2022-02-09 02:17:44,687 INFO L226 Difference]: Without dead ends: 2955
[2022-02-09 02:17:44,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:44,687 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:44,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 146 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states.
[2022-02-09 02:17:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1494.
[2022-02-09 02:17:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9953114534494305) internal successors, (5965), 1493 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5965 transitions.
[2022-02-09 02:17:44,724 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5965 transitions. Word has length 25
[2022-02-09 02:17:44,724 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,724 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5965 transitions.
[2022-02-09 02:17:44,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5965 transitions.
[2022-02-09 02:17:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:44,727 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:44,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2022-02-09 02:17:44,727 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:44,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash -371169967, now seen corresponding path program 27 times
[2022-02-09 02:17:44,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764432931]
[2022-02-09 02:17:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764432931]
[2022-02-09 02:17:44,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764432931] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:44,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710997641]
[2022-02-09 02:17:44,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:44,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,893 INFO L87 Difference]: Start difference. First operand 1494 states and 5965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,025 INFO L93 Difference]: Finished difference Result 3097 states and 11495 transitions.
[2022-02-09 02:17:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:45,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:45,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,032 INFO L225 Difference]: With dead ends: 3097
[2022-02-09 02:17:45,032 INFO L226 Difference]: Without dead ends: 2938
[2022-02-09 02:17:45,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:45,033 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 123 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 138 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states.
[2022-02-09 02:17:45,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1510.
[2022-02-09 02:17:45,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.984758117958913) internal successors, (6013), 1509 states have internal predecessors, (6013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 6013 transitions.
[2022-02-09 02:17:45,064 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 6013 transitions. Word has length 25
[2022-02-09 02:17:45,064 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,064 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 6013 transitions.
[2022-02-09 02:17:45,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 6013 transitions.
[2022-02-09 02:17:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:45,067 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:45,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2022-02-09 02:17:45,067 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1961104717, now seen corresponding path program 28 times
[2022-02-09 02:17:45,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271235002]
[2022-02-09 02:17:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271235002]
[2022-02-09 02:17:45,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271235002] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:45,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025751796]
[2022-02-09 02:17:45,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:45,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,255 INFO L87 Difference]: Start difference. First operand 1510 states and 6013 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,421 INFO L93 Difference]: Finished difference Result 3127 states and 11588 transitions.
[2022-02-09 02:17:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:45,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:45,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,430 INFO L225 Difference]: With dead ends: 3127
[2022-02-09 02:17:45,431 INFO L226 Difference]: Without dead ends: 2922
[2022-02-09 02:17:45,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:45,431 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 160 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states.
[2022-02-09 02:17:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1494.
[2022-02-09 02:17:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.989953114534494) internal successors, (5957), 1493 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5957 transitions.
[2022-02-09 02:17:45,470 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5957 transitions. Word has length 25
[2022-02-09 02:17:45,470 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,470 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5957 transitions.
[2022-02-09 02:17:45,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5957 transitions.
[2022-02-09 02:17:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:45,473 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:45,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2022-02-09 02:17:45,473 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1695699093, now seen corresponding path program 29 times
[2022-02-09 02:17:45,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72931068]
[2022-02-09 02:17:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72931068]
[2022-02-09 02:17:45,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72931068] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:45,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763609150]
[2022-02-09 02:17:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:45,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:45,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,631 INFO L87 Difference]: Start difference. First operand 1494 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,760 INFO L93 Difference]: Finished difference Result 3237 states and 11993 transitions.
[2022-02-09 02:17:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,767 INFO L225 Difference]: With dead ends: 3237
[2022-02-09 02:17:45,767 INFO L226 Difference]: Without dead ends: 3048
[2022-02-09 02:17:45,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:45,768 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states.
[2022-02-09 02:17:45,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 1557.
[2022-02-09 02:17:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1556 states have (on average 3.961439588688946) internal successors, (6164), 1556 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 6164 transitions.
[2022-02-09 02:17:45,800 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 6164 transitions. Word has length 25
[2022-02-09 02:17:45,800 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,800 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 6164 transitions.
[2022-02-09 02:17:45,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 6164 transitions.
[2022-02-09 02:17:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:45,804 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:45,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2022-02-09 02:17:45,805 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1993752051, now seen corresponding path program 30 times
[2022-02-09 02:17:45,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045854741]
[2022-02-09 02:17:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045854741]
[2022-02-09 02:17:45,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045854741] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:45,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624915883]
[2022-02-09 02:17:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:45,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,946 INFO L87 Difference]: Start difference. First operand 1557 states and 6164 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,074 INFO L93 Difference]: Finished difference Result 3270 states and 12076 transitions.
[2022-02-09 02:17:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:46,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,081 INFO L225 Difference]: With dead ends: 3270
[2022-02-09 02:17:46,081 INFO L226 Difference]: Without dead ends: 2961
[2022-02-09 02:17:46,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:46,081 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 151 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states.
[2022-02-09 02:17:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1470.
[2022-02-09 02:17:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.995234853641933) internal successors, (5869), 1469 states have internal predecessors, (5869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5869 transitions.
[2022-02-09 02:17:46,110 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5869 transitions. Word has length 25
[2022-02-09 02:17:46,110 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,110 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5869 transitions.
[2022-02-09 02:17:46,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5869 transitions.
[2022-02-09 02:17:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:46,114 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:46,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2022-02-09 02:17:46,114 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1911164755, now seen corresponding path program 31 times
[2022-02-09 02:17:46,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352142085]
[2022-02-09 02:17:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352142085]
[2022-02-09 02:17:46,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352142085] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:46,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748449410]
[2022-02-09 02:17:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:46,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,259 INFO L87 Difference]: Start difference. First operand 1470 states and 5869 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,379 INFO L93 Difference]: Finished difference Result 3113 states and 11574 transitions.
[2022-02-09 02:17:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:46,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,386 INFO L225 Difference]: With dead ends: 3113
[2022-02-09 02:17:46,386 INFO L226 Difference]: Without dead ends: 2954
[2022-02-09 02:17:46,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:46,386 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 147 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states.
[2022-02-09 02:17:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1518.
[2022-02-09 02:17:46,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 3.990112063282795) internal successors, (6053), 1517 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 6053 transitions.
[2022-02-09 02:17:46,418 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 6053 transitions. Word has length 25
[2022-02-09 02:17:46,418 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,418 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 6053 transitions.
[2022-02-09 02:17:46,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 6053 transitions.
[2022-02-09 02:17:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:46,422 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:46,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2022-02-09 02:17:46,422 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,423 INFO L85 PathProgramCache]: Analyzing trace with hash 902866771, now seen corresponding path program 32 times
[2022-02-09 02:17:46,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090644344]
[2022-02-09 02:17:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090644344]
[2022-02-09 02:17:46,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090644344] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:46,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293185906]
[2022-02-09 02:17:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:46,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:46,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,575 INFO L87 Difference]: Start difference. First operand 1518 states and 6053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,708 INFO L93 Difference]: Finished difference Result 3176 states and 11781 transitions.
[2022-02-09 02:17:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:46,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:46,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,716 INFO L225 Difference]: With dead ends: 3176
[2022-02-09 02:17:46,716 INFO L226 Difference]: Without dead ends: 2922
[2022-02-09 02:17:46,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:46,717 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 171 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states.
[2022-02-09 02:17:46,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1486.
[2022-02-09 02:17:46,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.98989898989899) internal successors, (5925), 1485 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5925 transitions.
[2022-02-09 02:17:46,747 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5925 transitions. Word has length 25
[2022-02-09 02:17:46,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,747 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5925 transitions.
[2022-02-09 02:17:46,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5925 transitions.
[2022-02-09 02:17:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:46,751 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:46,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2022-02-09 02:17:46,751 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:46,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash -350012683, now seen corresponding path program 33 times
[2022-02-09 02:17:46,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566792211]
[2022-02-09 02:17:46,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566792211]
[2022-02-09 02:17:46,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566792211] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:46,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542674128]
[2022-02-09 02:17:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:46,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,891 INFO L87 Difference]: Start difference. First operand 1486 states and 5925 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,021 INFO L93 Difference]: Finished difference Result 3058 states and 11363 transitions.
[2022-02-09 02:17:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,028 INFO L225 Difference]: With dead ends: 3058
[2022-02-09 02:17:47,029 INFO L226 Difference]: Without dead ends: 2899
[2022-02-09 02:17:47,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:47,029 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 178 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states.
[2022-02-09 02:17:47,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1502.
[2022-02-09 02:17:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.979347101932045) internal successors, (5973), 1501 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5973 transitions.
[2022-02-09 02:17:47,061 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5973 transitions. Word has length 25
[2022-02-09 02:17:47,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5973 transitions.
[2022-02-09 02:17:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5973 transitions.
[2022-02-09 02:17:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:47,064 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2022-02-09 02:17:47,065 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1330483957, now seen corresponding path program 34 times
[2022-02-09 02:17:47,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046459280]
[2022-02-09 02:17:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046459280]
[2022-02-09 02:17:47,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046459280] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:47,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305113333]
[2022-02-09 02:17:47,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:47,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:47,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,228 INFO L87 Difference]: Start difference. First operand 1502 states and 5973 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,366 INFO L93 Difference]: Finished difference Result 3082 states and 11439 transitions.
[2022-02-09 02:17:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,372 INFO L225 Difference]: With dead ends: 3082
[2022-02-09 02:17:47,373 INFO L226 Difference]: Without dead ends: 2883
[2022-02-09 02:17:47,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:47,373 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states.
[2022-02-09 02:17:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1486.
[2022-02-09 02:17:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9845117845117843) internal successors, (5917), 1485 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5917 transitions.
[2022-02-09 02:17:47,404 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5917 transitions. Word has length 25
[2022-02-09 02:17:47,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,404 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5917 transitions.
[2022-02-09 02:17:47,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5917 transitions.
[2022-02-09 02:17:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:47,406 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2022-02-09 02:17:47,407 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1276237067, now seen corresponding path program 35 times
[2022-02-09 02:17:47,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375139849]
[2022-02-09 02:17:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375139849]
[2022-02-09 02:17:47,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375139849] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:47,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470748566]
[2022-02-09 02:17:47,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:47,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:47,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,563 INFO L87 Difference]: Start difference. First operand 1486 states and 5917 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,722 INFO L93 Difference]: Finished difference Result 3173 states and 11786 transitions.
[2022-02-09 02:17:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:47,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:47,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,729 INFO L225 Difference]: With dead ends: 3173
[2022-02-09 02:17:47,730 INFO L226 Difference]: Without dead ends: 2990
[2022-02-09 02:17:47,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:47,730 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 162 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states.
[2022-02-09 02:17:47,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1530.
[2022-02-09 02:17:47,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1529 states have (on average 3.9692609548724658) internal successors, (6069), 1529 states have internal predecessors, (6069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6069 transitions.
[2022-02-09 02:17:47,784 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6069 transitions. Word has length 25
[2022-02-09 02:17:47,784 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,784 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6069 transitions.
[2022-02-09 02:17:47,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6069 transitions.
[2022-02-09 02:17:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:47,787 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2022-02-09 02:17:47,787 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2014398291, now seen corresponding path program 36 times
[2022-02-09 02:17:47,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388244077]
[2022-02-09 02:17:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388244077]
[2022-02-09 02:17:47,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388244077] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:47,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458953365]
[2022-02-09 02:17:47,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:47,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,941 INFO L87 Difference]: Start difference. First operand 1530 states and 6069 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,070 INFO L93 Difference]: Finished difference Result 3212 states and 11889 transitions.
[2022-02-09 02:17:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:48,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:48,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,077 INFO L225 Difference]: With dead ends: 3212
[2022-02-09 02:17:48,077 INFO L226 Difference]: Without dead ends: 2930
[2022-02-09 02:17:48,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:48,078 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states.
[2022-02-09 02:17:48,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1470.
[2022-02-09 02:17:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.989788972089857) internal successors, (5861), 1469 states have internal predecessors, (5861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5861 transitions.
[2022-02-09 02:17:48,111 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5861 transitions. Word has length 25
[2022-02-09 02:17:48,111 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,111 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5861 transitions.
[2022-02-09 02:17:48,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5861 transitions.
[2022-02-09 02:17:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:48,113 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:48,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2022-02-09 02:17:48,113 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1689199057, now seen corresponding path program 37 times
[2022-02-09 02:17:48,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50480561]
[2022-02-09 02:17:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:48,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50480561]
[2022-02-09 02:17:48,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50480561] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:48,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250114528]
[2022-02-09 02:17:48,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:48,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,271 INFO L87 Difference]: Start difference. First operand 1470 states and 5861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,392 INFO L93 Difference]: Finished difference Result 2991 states and 11110 transitions.
[2022-02-09 02:17:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:48,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,401 INFO L225 Difference]: With dead ends: 2991
[2022-02-09 02:17:48,401 INFO L226 Difference]: Without dead ends: 2832
[2022-02-09 02:17:48,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:48,402 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 104 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 161 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states.
[2022-02-09 02:17:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1494.
[2022-02-09 02:17:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9819156061620897) internal successors, (5945), 1493 states have internal predecessors, (5945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5945 transitions.
[2022-02-09 02:17:48,436 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5945 transitions. Word has length 25
[2022-02-09 02:17:48,436 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,436 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5945 transitions.
[2022-02-09 02:17:48,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5945 transitions.
[2022-02-09 02:17:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:48,439 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:48,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2022-02-09 02:17:48,439 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1015833489, now seen corresponding path program 38 times
[2022-02-09 02:17:48,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302668786]
[2022-02-09 02:17:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:48,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302668786]
[2022-02-09 02:17:48,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302668786] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:48,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416417506]
[2022-02-09 02:17:48,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:48,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:48,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,596 INFO L87 Difference]: Start difference. First operand 1494 states and 5945 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,742 INFO L93 Difference]: Finished difference Result 3021 states and 11203 transitions.
[2022-02-09 02:17:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:48,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,751 INFO L225 Difference]: With dead ends: 3021
[2022-02-09 02:17:48,752 INFO L226 Difference]: Without dead ends: 2816
[2022-02-09 02:17:48,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:48,760 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states.
[2022-02-09 02:17:48,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1478.
[2022-02-09 02:17:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.987136086662153) internal successors, (5889), 1477 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5889 transitions.
[2022-02-09 02:17:48,802 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5889 transitions. Word has length 25
[2022-02-09 02:17:48,802 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,804 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5889 transitions.
[2022-02-09 02:17:48,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5889 transitions.
[2022-02-09 02:17:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:48,813 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:48,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2022-02-09 02:17:48,813 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1896007023, now seen corresponding path program 39 times
[2022-02-09 02:17:48,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798519270]
[2022-02-09 02:17:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:48,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798519270]
[2022-02-09 02:17:48,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798519270] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:48,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134607185]
[2022-02-09 02:17:48,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:48,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:48,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,963 INFO L87 Difference]: Start difference. First operand 1478 states and 5889 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,100 INFO L93 Difference]: Finished difference Result 2985 states and 11085 transitions.
[2022-02-09 02:17:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:49,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,107 INFO L225 Difference]: With dead ends: 2985
[2022-02-09 02:17:49,107 INFO L226 Difference]: Without dead ends: 2826
[2022-02-09 02:17:49,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:49,107 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 184 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states.
[2022-02-09 02:17:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1494.
[2022-02-09 02:17:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9765572672471534) internal successors, (5937), 1493 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5937 transitions.
[2022-02-09 02:17:49,140 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5937 transitions. Word has length 25
[2022-02-09 02:17:49,140 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,140 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5937 transitions.
[2022-02-09 02:17:49,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5937 transitions.
[2022-02-09 02:17:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:49,143 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:49,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2022-02-09 02:17:49,143 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash -215510383, now seen corresponding path program 40 times
[2022-02-09 02:17:49,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989689287]
[2022-02-09 02:17:49,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:49,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989689287]
[2022-02-09 02:17:49,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989689287] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:49,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208768780]
[2022-02-09 02:17:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:49,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:49,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,312 INFO L87 Difference]: Start difference. First operand 1494 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,450 INFO L93 Difference]: Finished difference Result 3009 states and 11161 transitions.
[2022-02-09 02:17:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:49,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,457 INFO L225 Difference]: With dead ends: 3009
[2022-02-09 02:17:49,457 INFO L226 Difference]: Without dead ends: 2810
[2022-02-09 02:17:49,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:49,458 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 152 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-02-09 02:17:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1478.
[2022-02-09 02:17:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.981719702098849) internal successors, (5881), 1477 states have internal predecessors, (5881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5881 transitions.
[2022-02-09 02:17:49,493 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5881 transitions. Word has length 25
[2022-02-09 02:17:49,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,493 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5881 transitions.
[2022-02-09 02:17:49,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5881 transitions.
[2022-02-09 02:17:49,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:49,497 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:49,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2022-02-09 02:17:49,497 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:49,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,498 INFO L85 PathProgramCache]: Analyzing trace with hash -478845069, now seen corresponding path program 41 times
[2022-02-09 02:17:49,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010259889]
[2022-02-09 02:17:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:49,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010259889]
[2022-02-09 02:17:49,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010259889] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:49,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862374692]
[2022-02-09 02:17:49,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:49,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:49,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,642 INFO L87 Difference]: Start difference. First operand 1478 states and 5881 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,809 INFO L93 Difference]: Finished difference Result 3057 states and 11347 transitions.
[2022-02-09 02:17:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,817 INFO L225 Difference]: With dead ends: 3057
[2022-02-09 02:17:49,818 INFO L226 Difference]: Without dead ends: 2868
[2022-02-09 02:17:49,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:49,818 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 167 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states.
[2022-02-09 02:17:49,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1506.
[2022-02-09 02:17:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.966112956810631) internal successors, (5969), 1505 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5969 transitions.
[2022-02-09 02:17:49,860 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5969 transitions. Word has length 25
[2022-02-09 02:17:49,860 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,860 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5969 transitions.
[2022-02-09 02:17:49,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5969 transitions.
[2022-02-09 02:17:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:49,864 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:49,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2022-02-09 02:17:49,864 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1870989615, now seen corresponding path program 42 times
[2022-02-09 02:17:49,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020765932]
[2022-02-09 02:17:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020765932]
[2022-02-09 02:17:50,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020765932] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:50,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807729500]
[2022-02-09 02:17:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:50,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,028 INFO L87 Difference]: Start difference. First operand 1506 states and 5969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,163 INFO L93 Difference]: Finished difference Result 3051 states and 11302 transitions.
[2022-02-09 02:17:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,169 INFO L225 Difference]: With dead ends: 3051
[2022-02-09 02:17:50,169 INFO L226 Difference]: Without dead ends: 2832
[2022-02-09 02:17:50,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:50,170 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 146 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states.
[2022-02-09 02:17:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1470.
[2022-02-09 02:17:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.987066031313819) internal successors, (5857), 1469 states have internal predecessors, (5857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5857 transitions.
[2022-02-09 02:17:50,199 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5857 transitions. Word has length 25
[2022-02-09 02:17:50,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,199 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5857 transitions.
[2022-02-09 02:17:50,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5857 transitions.
[2022-02-09 02:17:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:50,201 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2022-02-09 02:17:50,202 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:50,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,202 INFO L85 PathProgramCache]: Analyzing trace with hash 426368213, now seen corresponding path program 43 times
[2022-02-09 02:17:50,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329543627]
[2022-02-09 02:17:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329543627]
[2022-02-09 02:17:50,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329543627] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:50,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331791293]
[2022-02-09 02:17:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:50,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,351 INFO L87 Difference]: Start difference. First operand 1470 states and 5857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,521 INFO L93 Difference]: Finished difference Result 3217 states and 11965 transitions.
[2022-02-09 02:17:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,529 INFO L225 Difference]: With dead ends: 3217
[2022-02-09 02:17:50,530 INFO L226 Difference]: Without dead ends: 3028
[2022-02-09 02:17:50,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:50,530 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 149 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states.
[2022-02-09 02:17:50,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 1528.
[2022-02-09 02:17:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 3.97773411918795) internal successors, (6074), 1527 states have internal predecessors, (6074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6074 transitions.
[2022-02-09 02:17:50,566 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6074 transitions. Word has length 25
[2022-02-09 02:17:50,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,567 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6074 transitions.
[2022-02-09 02:17:50,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6074 transitions.
[2022-02-09 02:17:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:50,570 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2022-02-09 02:17:50,571 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash -965776333, now seen corresponding path program 44 times
[2022-02-09 02:17:50,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949428948]
[2022-02-09 02:17:50,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949428948]
[2022-02-09 02:17:50,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949428948] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:50,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651207295]
[2022-02-09 02:17:50,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:50,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:50,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,720 INFO L87 Difference]: Start difference. First operand 1528 states and 6074 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,858 INFO L93 Difference]: Finished difference Result 3211 states and 11920 transitions.
[2022-02-09 02:17:50,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:50,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,868 INFO L225 Difference]: With dead ends: 3211
[2022-02-09 02:17:50,868 INFO L226 Difference]: Without dead ends: 3000
[2022-02-09 02:17:50,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:50,869 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states.
[2022-02-09 02:17:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1500.
[2022-02-09 02:17:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.983989326217478) internal successors, (5972), 1499 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5972 transitions.
[2022-02-09 02:17:50,901 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5972 transitions. Word has length 25
[2022-02-09 02:17:50,901 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,901 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5972 transitions.
[2022-02-09 02:17:50,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5972 transitions.
[2022-02-09 02:17:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:50,904 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2022-02-09 02:17:50,905 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:50,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1631017395, now seen corresponding path program 45 times
[2022-02-09 02:17:50,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407953908]
[2022-02-09 02:17:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407953908]
[2022-02-09 02:17:51,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407953908] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:51,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037807125]
[2022-02-09 02:17:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:51,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:51,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,063 INFO L87 Difference]: Start difference. First operand 1500 states and 5972 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,215 INFO L93 Difference]: Finished difference Result 3291 states and 12204 transitions.
[2022-02-09 02:17:51,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:51,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:51,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,225 INFO L225 Difference]: With dead ends: 3291
[2022-02-09 02:17:51,225 INFO L226 Difference]: Without dead ends: 3102
[2022-02-09 02:17:51,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:51,226 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states.
[2022-02-09 02:17:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1563.
[2022-02-09 02:17:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 3.9558258642765685) internal successors, (6179), 1562 states have internal predecessors, (6179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 6179 transitions.
[2022-02-09 02:17:51,270 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 6179 transitions. Word has length 25
[2022-02-09 02:17:51,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,270 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 6179 transitions.
[2022-02-09 02:17:51,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 6179 transitions.
[2022-02-09 02:17:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:51,274 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:51,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2022-02-09 02:17:51,274 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1931867597, now seen corresponding path program 46 times
[2022-02-09 02:17:51,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263285292]
[2022-02-09 02:17:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263285292]
[2022-02-09 02:17:51,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263285292] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:51,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143663925]
[2022-02-09 02:17:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:51,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,421 INFO L87 Difference]: Start difference. First operand 1563 states and 6179 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,552 INFO L93 Difference]: Finished difference Result 3324 states and 12287 transitions.
[2022-02-09 02:17:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:51,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,559 INFO L225 Difference]: With dead ends: 3324
[2022-02-09 02:17:51,560 INFO L226 Difference]: Without dead ends: 3039
[2022-02-09 02:17:51,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:51,560 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 137 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states.
[2022-02-09 02:17:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 1500.
[2022-02-09 02:17:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.963975983989326) internal successors, (5942), 1499 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5942 transitions.
[2022-02-09 02:17:51,592 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5942 transitions. Word has length 25
[2022-02-09 02:17:51,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,592 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5942 transitions.
[2022-02-09 02:17:51,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5942 transitions.
[2022-02-09 02:17:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:51,595 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:51,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2022-02-09 02:17:51,595 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1995274769, now seen corresponding path program 47 times
[2022-02-09 02:17:51,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778619723]
[2022-02-09 02:17:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778619723]
[2022-02-09 02:17:51,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778619723] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:51,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591497128]
[2022-02-09 02:17:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:51,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,740 INFO L87 Difference]: Start difference. First operand 1500 states and 5942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,885 INFO L93 Difference]: Finished difference Result 3260 states and 12082 transitions.
[2022-02-09 02:17:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,894 INFO L225 Difference]: With dead ends: 3260
[2022-02-09 02:17:51,894 INFO L226 Difference]: Without dead ends: 3077
[2022-02-09 02:17:51,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:51,895 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 152 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states.
[2022-02-09 02:17:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1544.
[2022-02-09 02:17:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1543 states have (on average 3.949449125081011) internal successors, (6094), 1543 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 6094 transitions.
[2022-02-09 02:17:51,933 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 6094 transitions. Word has length 25
[2022-02-09 02:17:51,933 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,933 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 6094 transitions.
[2022-02-09 02:17:51,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 6094 transitions.
[2022-02-09 02:17:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:51,936 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:51,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2022-02-09 02:17:51,937 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash 925755763, now seen corresponding path program 48 times
[2022-02-09 02:17:51,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209404119]
[2022-02-09 02:17:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209404119]
[2022-02-09 02:17:52,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209404119] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:52,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255786710]
[2022-02-09 02:17:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:52,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,092 INFO L87 Difference]: Start difference. First operand 1544 states and 6094 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,220 INFO L93 Difference]: Finished difference Result 3299 states and 12185 transitions.
[2022-02-09 02:17:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:52,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,227 INFO L225 Difference]: With dead ends: 3299
[2022-02-09 02:17:52,227 INFO L226 Difference]: Without dead ends: 2991
[2022-02-09 02:17:52,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:52,227 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 178 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states.
[2022-02-09 02:17:52,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1458.
[2022-02-09 02:17:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9938229238160603) internal successors, (5819), 1457 states have internal predecessors, (5819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5819 transitions.
[2022-02-09 02:17:52,258 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5819 transitions. Word has length 25
[2022-02-09 02:17:52,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,258 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5819 transitions.
[2022-02-09 02:17:52,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5819 transitions.
[2022-02-09 02:17:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:52,261 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2022-02-09 02:17:52,261 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1259486381, now seen corresponding path program 49 times
[2022-02-09 02:17:52,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760119827]
[2022-02-09 02:17:52,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760119827]
[2022-02-09 02:17:52,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760119827] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:52,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649286573]
[2022-02-09 02:17:52,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:52,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,407 INFO L87 Difference]: Start difference. First operand 1458 states and 5819 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,533 INFO L93 Difference]: Finished difference Result 3080 states and 11471 transitions.
[2022-02-09 02:17:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:52,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:52,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,541 INFO L225 Difference]: With dead ends: 3080
[2022-02-09 02:17:52,542 INFO L226 Difference]: Without dead ends: 2921
[2022-02-09 02:17:52,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:52,542 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:52,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states.
[2022-02-09 02:17:52,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1514.
[2022-02-09 02:17:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.994051553205552) internal successors, (6043), 1513 states have internal predecessors, (6043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6043 transitions.
[2022-02-09 02:17:52,580 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6043 transitions. Word has length 25
[2022-02-09 02:17:52,580 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,580 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6043 transitions.
[2022-02-09 02:17:52,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6043 transitions.
[2022-02-09 02:17:52,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:52,583 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2022-02-09 02:17:52,583 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2027182931, now seen corresponding path program 50 times
[2022-02-09 02:17:52,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623439399]
[2022-02-09 02:17:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623439399]
[2022-02-09 02:17:52,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623439399] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:52,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473886654]
[2022-02-09 02:17:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:52,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,735 INFO L87 Difference]: Start difference. First operand 1514 states and 6043 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,852 INFO L93 Difference]: Finished difference Result 3143 states and 11678 transitions.
[2022-02-09 02:17:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:52,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,858 INFO L225 Difference]: With dead ends: 3143
[2022-02-09 02:17:52,858 INFO L226 Difference]: Without dead ends: 2889
[2022-02-09 02:17:52,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:52,859 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states.
[2022-02-09 02:17:52,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1482.
[2022-02-09 02:17:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9939230249831197) internal successors, (5915), 1481 states have internal predecessors, (5915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5915 transitions.
[2022-02-09 02:17:52,887 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5915 transitions. Word has length 25
[2022-02-09 02:17:52,887 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,887 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5915 transitions.
[2022-02-09 02:17:52,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5915 transitions.
[2022-02-09 02:17:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:52,889 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2022-02-09 02:17:52,889 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash -270452875, now seen corresponding path program 51 times
[2022-02-09 02:17:52,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180994910]
[2022-02-09 02:17:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180994910]
[2022-02-09 02:17:53,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180994910] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:53,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064840096]
[2022-02-09 02:17:53,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:53,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,056 INFO L87 Difference]: Start difference. First operand 1482 states and 5915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,158 INFO L93 Difference]: Finished difference Result 3029 states and 11272 transitions.
[2022-02-09 02:17:53,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:53,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:53,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,165 INFO L225 Difference]: With dead ends: 3029
[2022-02-09 02:17:53,165 INFO L226 Difference]: Without dead ends: 2870
[2022-02-09 02:17:53,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:53,166 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states.
[2022-02-09 02:17:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1498.
[2022-02-09 02:17:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9832999331997327) internal successors, (5963), 1497 states have internal predecessors, (5963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5963 transitions.
[2022-02-09 02:17:53,197 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5963 transitions. Word has length 25
[2022-02-09 02:17:53,197 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,197 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5963 transitions.
[2022-02-09 02:17:53,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5963 transitions.
[2022-02-09 02:17:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:53,200 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2022-02-09 02:17:53,200 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 737845109, now seen corresponding path program 52 times
[2022-02-09 02:17:53,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260928407]
[2022-02-09 02:17:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260928407]
[2022-02-09 02:17:53,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260928407] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:53,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595932292]
[2022-02-09 02:17:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:53,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,349 INFO L87 Difference]: Start difference. First operand 1498 states and 5963 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,517 INFO L93 Difference]: Finished difference Result 3057 states and 11360 transitions.
[2022-02-09 02:17:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,524 INFO L225 Difference]: With dead ends: 3057
[2022-02-09 02:17:53,524 INFO L226 Difference]: Without dead ends: 2854
[2022-02-09 02:17:53,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:53,525 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 92 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 192 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states.
[2022-02-09 02:17:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1482.
[2022-02-09 02:17:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.988521269412559) internal successors, (5907), 1481 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions.
[2022-02-09 02:17:53,556 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25
[2022-02-09 02:17:53,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,556 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions.
[2022-02-09 02:17:53,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions.
[2022-02-09 02:17:53,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:53,559 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2022-02-09 02:17:53,559 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1868875915, now seen corresponding path program 53 times
[2022-02-09 02:17:53,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996514362]
[2022-02-09 02:17:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996514362]
[2022-02-09 02:17:53,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996514362] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:53,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824127450]
[2022-02-09 02:17:53,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:53,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:53,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,694 INFO L87 Difference]: Start difference. First operand 1482 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,822 INFO L93 Difference]: Finished difference Result 3150 states and 11714 transitions.
[2022-02-09 02:17:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:53,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:53,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,829 INFO L225 Difference]: With dead ends: 3150
[2022-02-09 02:17:53,829 INFO L226 Difference]: Without dead ends: 2963
[2022-02-09 02:17:53,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:53,830 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 155 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:53,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states.
[2022-02-09 02:17:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1528.
[2022-02-09 02:17:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 3.971185330713818) internal successors, (6064), 1527 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6064 transitions.
[2022-02-09 02:17:53,862 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6064 transitions. Word has length 25
[2022-02-09 02:17:53,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,862 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6064 transitions.
[2022-02-09 02:17:53,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6064 transitions.
[2022-02-09 02:17:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:53,865 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2022-02-09 02:17:53,865 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:53,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2072951891, now seen corresponding path program 54 times
[2022-02-09 02:17:53,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324807631]
[2022-02-09 02:17:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:54,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:54,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324807631]
[2022-02-09 02:17:54,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324807631] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:54,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:54,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:54,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647739933]
[2022-02-09 02:17:54,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:54,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:54,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:54,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:54,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,002 INFO L87 Difference]: Start difference. First operand 1528 states and 6064 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:54,109 INFO L93 Difference]: Finished difference Result 3185 states and 11803 transitions.
[2022-02-09 02:17:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:54,115 INFO L225 Difference]: With dead ends: 3185
[2022-02-09 02:17:54,115 INFO L226 Difference]: Without dead ends: 2901
[2022-02-09 02:17:54,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:54,116 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 118 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:54,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 148 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:54,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states.
[2022-02-09 02:17:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1466.
[2022-02-09 02:17:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.9938566552901023) internal successors, (5851), 1465 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5851 transitions.
[2022-02-09 02:17:54,144 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5851 transitions. Word has length 25
[2022-02-09 02:17:54,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:54,144 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5851 transitions.
[2022-02-09 02:17:54,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5851 transitions.
[2022-02-09 02:17:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:54,147 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:54,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:54,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2022-02-09 02:17:54,148 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:54,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash 450115381, now seen corresponding path program 55 times
[2022-02-09 02:17:54,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:54,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052026132]
[2022-02-09 02:17:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:54,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:54,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:54,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052026132]
[2022-02-09 02:17:54,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052026132] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:54,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:54,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:54,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793637860]
[2022-02-09 02:17:54,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:54,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:54,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:54,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:54,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,293 INFO L87 Difference]: Start difference. First operand 1466 states and 5851 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:54,414 INFO L93 Difference]: Finished difference Result 3074 states and 11444 transitions.
[2022-02-09 02:17:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:54,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:54,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:54,421 INFO L225 Difference]: With dead ends: 3074
[2022-02-09 02:17:54,421 INFO L226 Difference]: Without dead ends: 2915
[2022-02-09 02:17:54,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:54,421 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:54,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:54,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states.
[2022-02-09 02:17:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1514.
[2022-02-09 02:17:54,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.9887640449438204) internal successors, (6035), 1513 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6035 transitions.
[2022-02-09 02:17:54,450 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6035 transitions. Word has length 25
[2022-02-09 02:17:54,450 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:54,450 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6035 transitions.
[2022-02-09 02:17:54,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6035 transitions.
[2022-02-09 02:17:54,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:54,452 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:54,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:54,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2022-02-09 02:17:54,452 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:54,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:54,453 INFO L85 PathProgramCache]: Analyzing trace with hash -558182603, now seen corresponding path program 56 times
[2022-02-09 02:17:54,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:54,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809453719]
[2022-02-09 02:17:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:54,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:54,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:54,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809453719]
[2022-02-09 02:17:54,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809453719] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:54,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:54,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:54,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821571728]
[2022-02-09 02:17:54,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:54,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:54,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:54,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,588 INFO L87 Difference]: Start difference. First operand 1514 states and 6035 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:54,691 INFO L93 Difference]: Finished difference Result 3137 states and 11651 transitions.
[2022-02-09 02:17:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:54,697 INFO L225 Difference]: With dead ends: 3137
[2022-02-09 02:17:54,697 INFO L226 Difference]: Without dead ends: 2883
[2022-02-09 02:17:54,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:54,698 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:54,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 146 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states.
[2022-02-09 02:17:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1482.
[2022-02-09 02:17:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.988521269412559) internal successors, (5907), 1481 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions.
[2022-02-09 02:17:54,727 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25
[2022-02-09 02:17:54,727 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:54,727 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions.
[2022-02-09 02:17:54,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions.
[2022-02-09 02:17:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:54,729 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:54,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:54,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2022-02-09 02:17:54,730 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:54,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:54,730 INFO L85 PathProgramCache]: Analyzing trace with hash 455868149, now seen corresponding path program 57 times
[2022-02-09 02:17:54,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:54,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148606030]
[2022-02-09 02:17:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:54,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:54,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:54,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148606030]
[2022-02-09 02:17:54,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148606030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:54,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:54,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:54,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669332965]
[2022-02-09 02:17:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:54,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:54,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,874 INFO L87 Difference]: Start difference. First operand 1482 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:55,003 INFO L93 Difference]: Finished difference Result 3019 states and 11233 transitions.
[2022-02-09 02:17:55,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:55,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:55,010 INFO L225 Difference]: With dead ends: 3019
[2022-02-09 02:17:55,011 INFO L226 Difference]: Without dead ends: 2860
[2022-02-09 02:17:55,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:55,011 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:55,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 185 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states.
[2022-02-09 02:17:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1498.
[2022-02-09 02:17:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9779559118236474) internal successors, (5955), 1497 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5955 transitions.
[2022-02-09 02:17:55,046 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5955 transitions. Word has length 25
[2022-02-09 02:17:55,046 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:55,046 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5955 transitions.
[2022-02-09 02:17:55,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5955 transitions.
[2022-02-09 02:17:55,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:55,050 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:55,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:55,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2022-02-09 02:17:55,050 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:55,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:55,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2136364789, now seen corresponding path program 58 times
[2022-02-09 02:17:55,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:55,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065418902]
[2022-02-09 02:17:55,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:55,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:55,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:55,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:55,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065418902]
[2022-02-09 02:17:55,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065418902] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:55,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:55,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:55,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411031487]
[2022-02-09 02:17:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:55,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:55,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:55,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:55,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:55,181 INFO L87 Difference]: Start difference. First operand 1498 states and 5955 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:55,317 INFO L93 Difference]: Finished difference Result 3043 states and 11309 transitions.
[2022-02-09 02:17:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:55,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:55,326 INFO L225 Difference]: With dead ends: 3043
[2022-02-09 02:17:55,326 INFO L226 Difference]: Without dead ends: 2844
[2022-02-09 02:17:55,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:55,327 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:55,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 152 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states.
[2022-02-09 02:17:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1482.
[2022-02-09 02:17:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9831195138419986) internal successors, (5899), 1481 states have internal predecessors, (5899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5899 transitions.
[2022-02-09 02:17:55,388 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5899 transitions. Word has length 25
[2022-02-09 02:17:55,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:55,388 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5899 transitions.
[2022-02-09 02:17:55,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5899 transitions.
[2022-02-09 02:17:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:55,391 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:55,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:55,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2022-02-09 02:17:55,392 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:55,392 INFO L85 PathProgramCache]: Analyzing trace with hash -470356235, now seen corresponding path program 59 times
[2022-02-09 02:17:55,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:55,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575822205]
[2022-02-09 02:17:55,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:55,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:55,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:55,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575822205]
[2022-02-09 02:17:55,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575822205] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:55,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:55,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:55,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861748699]
[2022-02-09 02:17:55,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:55,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:55,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:55,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:55,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:55,545 INFO L87 Difference]: Start difference. First operand 1482 states and 5899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:55,680 INFO L93 Difference]: Finished difference Result 3134 states and 11656 transitions.
[2022-02-09 02:17:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:55,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:55,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:55,688 INFO L225 Difference]: With dead ends: 3134
[2022-02-09 02:17:55,688 INFO L226 Difference]: Without dead ends: 2951
[2022-02-09 02:17:55,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:55,689 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:55,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 160 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:55,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states.
[2022-02-09 02:17:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1526.
[2022-02-09 02:17:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 3.9678688524590164) internal successors, (6051), 1525 states have internal predecessors, (6051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6051 transitions.
[2022-02-09 02:17:55,721 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6051 transitions. Word has length 25
[2022-02-09 02:17:55,721 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:55,721 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6051 transitions.
[2022-02-09 02:17:55,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6051 transitions.
[2022-02-09 02:17:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:55,723 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:55,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:55,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2022-02-09 02:17:55,724 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:55,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1474688173, now seen corresponding path program 60 times
[2022-02-09 02:17:55,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:55,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435261687]
[2022-02-09 02:17:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:55,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:55,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:55,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435261687]
[2022-02-09 02:17:55,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435261687] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:55,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:55,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:55,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833861208]
[2022-02-09 02:17:55,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:55,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:55,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:55,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:55,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:55,869 INFO L87 Difference]: Start difference. First operand 1526 states and 6051 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:56,002 INFO L93 Difference]: Finished difference Result 3173 states and 11759 transitions.
[2022-02-09 02:17:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:56,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:56,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:56,010 INFO L225 Difference]: With dead ends: 3173
[2022-02-09 02:17:56,010 INFO L226 Difference]: Without dead ends: 2891
[2022-02-09 02:17:56,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:56,010 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:56,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 160 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states.
[2022-02-09 02:17:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1466.
[2022-02-09 02:17:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.98839590443686) internal successors, (5843), 1465 states have internal predecessors, (5843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5843 transitions.
[2022-02-09 02:17:56,042 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5843 transitions. Word has length 25
[2022-02-09 02:17:56,042 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:56,042 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5843 transitions.
[2022-02-09 02:17:56,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5843 transitions.
[2022-02-09 02:17:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:56,045 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:56,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:56,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2022-02-09 02:17:56,046 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:56,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash -8519017, now seen corresponding path program 61 times
[2022-02-09 02:17:56,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:56,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090826332]
[2022-02-09 02:17:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:56,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:56,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:56,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090826332]
[2022-02-09 02:17:56,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090826332] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:56,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:56,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:56,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129669537]
[2022-02-09 02:17:56,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:56,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:56,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:56,191 INFO L87 Difference]: Start difference. First operand 1466 states and 5843 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:56,302 INFO L93 Difference]: Finished difference Result 2948 states and 10970 transitions.
[2022-02-09 02:17:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:56,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:56,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:56,309 INFO L225 Difference]: With dead ends: 2948
[2022-02-09 02:17:56,309 INFO L226 Difference]: Without dead ends: 2789
[2022-02-09 02:17:56,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:56,310 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:56,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 162 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states.
[2022-02-09 02:17:56,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1490.
[2022-02-09 02:17:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.9805238415043656) internal successors, (5927), 1489 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5927 transitions.
[2022-02-09 02:17:56,342 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5927 transitions. Word has length 25
[2022-02-09 02:17:56,342 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:56,342 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5927 transitions.
[2022-02-09 02:17:56,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5927 transitions.
[2022-02-09 02:17:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:56,344 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:56,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:56,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2022-02-09 02:17:56,345 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:56,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:56,345 INFO L85 PathProgramCache]: Analyzing trace with hash 999778967, now seen corresponding path program 62 times
[2022-02-09 02:17:56,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:56,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294137110]
[2022-02-09 02:17:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:56,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:56,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:56,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294137110]
[2022-02-09 02:17:56,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294137110] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:56,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:56,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:56,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105085816]
[2022-02-09 02:17:56,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:56,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:56,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:56,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:56,479 INFO L87 Difference]: Start difference. First operand 1490 states and 5927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:56,598 INFO L93 Difference]: Finished difference Result 2976 states and 11058 transitions.
[2022-02-09 02:17:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:56,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:56,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:56,619 INFO L225 Difference]: With dead ends: 2976
[2022-02-09 02:17:56,620 INFO L226 Difference]: Without dead ends: 2773
[2022-02-09 02:17:56,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:56,620 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:56,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 131 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states.
[2022-02-09 02:17:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1474.
[2022-02-09 02:17:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9857433808553973) internal successors, (5871), 1473 states have internal predecessors, (5871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5871 transitions.
[2022-02-09 02:17:56,684 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5871 transitions. Word has length 25
[2022-02-09 02:17:56,684 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:56,685 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5871 transitions.
[2022-02-09 02:17:56,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5871 transitions.
[2022-02-09 02:17:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:56,688 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:56,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:56,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2022-02-09 02:17:56,688 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash -855315979, now seen corresponding path program 63 times
[2022-02-09 02:17:56,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:56,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410345141]
[2022-02-09 02:17:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:56,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:56,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:56,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410345141]
[2022-02-09 02:17:56,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410345141] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:56,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:56,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:56,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516214868]
[2022-02-09 02:17:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:56,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:56,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:56,827 INFO L87 Difference]: Start difference. First operand 1474 states and 5871 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:56,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:56,956 INFO L93 Difference]: Finished difference Result 2944 states and 10950 transitions.
[2022-02-09 02:17:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:56,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:56,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:56,969 INFO L225 Difference]: With dead ends: 2944
[2022-02-09 02:17:56,969 INFO L226 Difference]: Without dead ends: 2785
[2022-02-09 02:17:56,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:56,970 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:56,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 157 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:56,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states.
[2022-02-09 02:17:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1490.
[2022-02-09 02:17:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.9751511081262594) internal successors, (5919), 1489 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5919 transitions.
[2022-02-09 02:17:57,022 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5919 transitions. Word has length 25
[2022-02-09 02:17:57,022 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:57,022 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5919 transitions.
[2022-02-09 02:17:57,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5919 transitions.
[2022-02-09 02:17:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:57,026 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:57,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:57,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2022-02-09 02:17:57,026 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash -885175657, now seen corresponding path program 64 times
[2022-02-09 02:17:57,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:57,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257926900]
[2022-02-09 02:17:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:57,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:57,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:57,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257926900]
[2022-02-09 02:17:57,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257926900] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:57,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:57,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:57,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290272060]
[2022-02-09 02:17:57,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:57,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:57,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:57,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:57,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:57,173 INFO L87 Difference]: Start difference. First operand 1490 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:57,302 INFO L93 Difference]: Finished difference Result 2968 states and 11026 transitions.
[2022-02-09 02:17:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:57,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:57,310 INFO L225 Difference]: With dead ends: 2968
[2022-02-09 02:17:57,310 INFO L226 Difference]: Without dead ends: 2769
[2022-02-09 02:17:57,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:57,311 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:57,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states.
[2022-02-09 02:17:57,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1474.
[2022-02-09 02:17:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9803122878479296) internal successors, (5863), 1473 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5863 transitions.
[2022-02-09 02:17:57,357 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5863 transitions. Word has length 25
[2022-02-09 02:17:57,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:57,357 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5863 transitions.
[2022-02-09 02:17:57,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5863 transitions.
[2022-02-09 02:17:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:57,360 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:57,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:57,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2022-02-09 02:17:57,361 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:57,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1049346711, now seen corresponding path program 65 times
[2022-02-09 02:17:57,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:57,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726788488]
[2022-02-09 02:17:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:57,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:57,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:57,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726788488]
[2022-02-09 02:17:57,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726788488] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:57,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:57,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:57,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705516390]
[2022-02-09 02:17:57,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:57,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:57,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:57,522 INFO L87 Difference]: Start difference. First operand 1474 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:57,665 INFO L93 Difference]: Finished difference Result 3012 states and 11202 transitions.
[2022-02-09 02:17:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:57,677 INFO L225 Difference]: With dead ends: 3012
[2022-02-09 02:17:57,677 INFO L226 Difference]: Without dead ends: 2825
[2022-02-09 02:17:57,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:57,677 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:57,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 160 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states.
[2022-02-09 02:17:57,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1502.
[2022-02-09 02:17:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9646902065289806) internal successors, (5951), 1501 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5951 transitions.
[2022-02-09 02:17:57,722 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5951 transitions. Word has length 25
[2022-02-09 02:17:57,722 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:57,722 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5951 transitions.
[2022-02-09 02:17:57,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5951 transitions.
[2022-02-09 02:17:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:57,725 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:57,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:57,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2022-02-09 02:17:57,725 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:57,725 INFO L85 PathProgramCache]: Analyzing trace with hash -993990283, now seen corresponding path program 66 times
[2022-02-09 02:17:57,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:57,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633805899]
[2022-02-09 02:17:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:57,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:57,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:57,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633805899]
[2022-02-09 02:17:57,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633805899] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:57,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:57,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:57,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079969101]
[2022-02-09 02:17:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:57,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:57,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:57,857 INFO L87 Difference]: Start difference. First operand 1502 states and 5951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:58,024 INFO L93 Difference]: Finished difference Result 3008 states and 11162 transitions.
[2022-02-09 02:17:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:58,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:58,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:58,037 INFO L225 Difference]: With dead ends: 3008
[2022-02-09 02:17:58,037 INFO L226 Difference]: Without dead ends: 2789
[2022-02-09 02:17:58,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:58,038 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:58,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 138 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:58,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states.
[2022-02-09 02:17:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1466.
[2022-02-09 02:17:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.9856655290102387) internal successors, (5839), 1465 states have internal predecessors, (5839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5839 transitions.
[2022-02-09 02:17:58,084 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5839 transitions. Word has length 25
[2022-02-09 02:17:58,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:58,084 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5839 transitions.
[2022-02-09 02:17:58,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5839 transitions.
[2022-02-09 02:17:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:58,088 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:58,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:58,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2022-02-09 02:17:58,088 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:58,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash -43623785, now seen corresponding path program 67 times
[2022-02-09 02:17:58,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:58,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349815089]
[2022-02-09 02:17:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:58,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:58,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:58,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349815089]
[2022-02-09 02:17:58,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349815089] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:58,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:58,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:58,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891086316]
[2022-02-09 02:17:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:58,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:58,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:58,227 INFO L87 Difference]: Start difference. First operand 1466 states and 5839 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:58,365 INFO L93 Difference]: Finished difference Result 3147 states and 11741 transitions.
[2022-02-09 02:17:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:58,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:58,380 INFO L225 Difference]: With dead ends: 3147
[2022-02-09 02:17:58,380 INFO L226 Difference]: Without dead ends: 2960
[2022-02-09 02:17:58,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:58,380 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:58,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 154 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states.
[2022-02-09 02:17:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1516.
[2022-02-09 02:17:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 3.9788778877887787) internal successors, (6028), 1515 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 6028 transitions.
[2022-02-09 02:17:58,423 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 6028 transitions. Word has length 25
[2022-02-09 02:17:58,423 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:58,423 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 6028 transitions.
[2022-02-09 02:17:58,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 6028 transitions.
[2022-02-09 02:17:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:58,426 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:58,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:58,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2022-02-09 02:17:58,426 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2086960779, now seen corresponding path program 68 times
[2022-02-09 02:17:58,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:58,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765032855]
[2022-02-09 02:17:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:58,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:58,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:58,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765032855]
[2022-02-09 02:17:58,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765032855] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:58,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:58,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:58,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279268283]
[2022-02-09 02:17:58,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:58,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:58,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:58,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:58,600 INFO L87 Difference]: Start difference. First operand 1516 states and 6028 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:58,741 INFO L93 Difference]: Finished difference Result 3143 states and 11701 transitions.
[2022-02-09 02:17:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:58,754 INFO L225 Difference]: With dead ends: 3143
[2022-02-09 02:17:58,754 INFO L226 Difference]: Without dead ends: 2932
[2022-02-09 02:17:58,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:58,755 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:58,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 159 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states.
[2022-02-09 02:17:58,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1488.
[2022-02-09 02:17:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.985205110961668) internal successors, (5926), 1487 states have internal predecessors, (5926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5926 transitions.
[2022-02-09 02:17:58,800 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5926 transitions. Word has length 25
[2022-02-09 02:17:58,800 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:58,800 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5926 transitions.
[2022-02-09 02:17:58,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5926 transitions.
[2022-02-09 02:17:58,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:58,804 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:58,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:58,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2022-02-09 02:17:58,805 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:58,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:58,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1161025397, now seen corresponding path program 69 times
[2022-02-09 02:17:58,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:58,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295025599]
[2022-02-09 02:17:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:58,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:58,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:58,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295025599]
[2022-02-09 02:17:58,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295025599] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:58,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:58,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:58,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353045440]
[2022-02-09 02:17:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:58,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:58,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:58,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:58,948 INFO L87 Difference]: Start difference. First operand 1488 states and 5926 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:59,076 INFO L93 Difference]: Finished difference Result 3204 states and 11929 transitions.
[2022-02-09 02:17:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:59,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:59,088 INFO L225 Difference]: With dead ends: 3204
[2022-02-09 02:17:59,088 INFO L226 Difference]: Without dead ends: 3017
[2022-02-09 02:17:59,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:59,088 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:59,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states.
[2022-02-09 02:17:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 1534.
[2022-02-09 02:17:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1533 states have (on average 3.9680365296803655) internal successors, (6083), 1533 states have internal predecessors, (6083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 6083 transitions.
[2022-02-09 02:17:59,136 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 6083 transitions. Word has length 25
[2022-02-09 02:17:59,136 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:59,136 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 6083 transitions.
[2022-02-09 02:17:59,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 6083 transitions.
[2022-02-09 02:17:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:59,140 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:59,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:59,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2022-02-09 02:17:59,140 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1241915253, now seen corresponding path program 70 times
[2022-02-09 02:17:59,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:59,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832545600]
[2022-02-09 02:17:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:59,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:59,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:59,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832545600]
[2022-02-09 02:17:59,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832545600] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:59,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:59,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:59,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590585065]
[2022-02-09 02:17:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:59,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:59,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:59,287 INFO L87 Difference]: Start difference. First operand 1534 states and 6083 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:59,406 INFO L93 Difference]: Finished difference Result 3239 states and 12018 transitions.
[2022-02-09 02:17:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:59,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:59,412 INFO L225 Difference]: With dead ends: 3239
[2022-02-09 02:17:59,412 INFO L226 Difference]: Without dead ends: 2971
[2022-02-09 02:17:59,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:59,413 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:59,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 145 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states.
[2022-02-09 02:17:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1488.
[2022-02-09 02:17:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9704102219233355) internal successors, (5904), 1487 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5904 transitions.
[2022-02-09 02:17:59,442 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5904 transitions. Word has length 25
[2022-02-09 02:17:59,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:59,442 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5904 transitions.
[2022-02-09 02:17:59,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5904 transitions.
[2022-02-09 02:17:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:59,444 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:59,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:59,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2022-02-09 02:17:59,445 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:59,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2143373011, now seen corresponding path program 71 times
[2022-02-09 02:17:59,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:59,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607171142]
[2022-02-09 02:17:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:59,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:59,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:59,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607171142]
[2022-02-09 02:17:59,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607171142] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:59,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:59,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:59,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198738349]
[2022-02-09 02:17:59,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:59,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:59,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:59,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:59,583 INFO L87 Difference]: Start difference. First operand 1488 states and 5904 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:59,745 INFO L93 Difference]: Finished difference Result 3194 states and 11876 transitions.
[2022-02-09 02:17:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:17:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:17:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:59,756 INFO L225 Difference]: With dead ends: 3194
[2022-02-09 02:17:59,756 INFO L226 Difference]: Without dead ends: 3011
[2022-02-09 02:17:59,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:17:59,757 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:59,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 175 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:59,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states.
[2022-02-09 02:17:59,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 1532.
[2022-02-09 02:17:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 3.955584585238406) internal successors, (6056), 1531 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 6056 transitions.
[2022-02-09 02:17:59,803 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 6056 transitions. Word has length 25
[2022-02-09 02:17:59,803 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:59,803 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 6056 transitions.
[2022-02-09 02:17:59,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 6056 transitions.
[2022-02-09 02:17:59,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:17:59,807 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:59,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:59,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2022-02-09 02:17:59,808 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:17:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1073854005, now seen corresponding path program 72 times
[2022-02-09 02:17:59,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:59,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822843942]
[2022-02-09 02:17:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:59,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:59,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:59,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822843942]
[2022-02-09 02:17:59,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822843942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:59,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:59,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:17:59,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493446814]
[2022-02-09 02:17:59,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:59,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:17:59,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:59,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:17:59,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:59,969 INFO L87 Difference]: Start difference. First operand 1532 states and 6056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:00,089 INFO L93 Difference]: Finished difference Result 3233 states and 11979 transitions.
[2022-02-09 02:18:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:00,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:00,097 INFO L225 Difference]: With dead ends: 3233
[2022-02-09 02:18:00,097 INFO L226 Difference]: Without dead ends: 2937
[2022-02-09 02:18:00,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:00,097 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:00,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states.
[2022-02-09 02:18:00,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1458.
[2022-02-09 02:18:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9910775566231984) internal successors, (5815), 1457 states have internal predecessors, (5815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5815 transitions.
[2022-02-09 02:18:00,130 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5815 transitions. Word has length 25
[2022-02-09 02:18:00,130 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:00,130 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5815 transitions.
[2022-02-09 02:18:00,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5815 transitions.
[2022-02-09 02:18:00,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:00,133 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:00,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:00,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2022-02-09 02:18:00,133 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash 442501743, now seen corresponding path program 73 times
[2022-02-09 02:18:00,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:00,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846992359]
[2022-02-09 02:18:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:00,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:00,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:00,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846992359]
[2022-02-09 02:18:00,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846992359] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:00,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:00,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:00,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628910737]
[2022-02-09 02:18:00,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:00,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:00,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:00,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:00,275 INFO L87 Difference]: Start difference. First operand 1458 states and 5815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:00,410 INFO L93 Difference]: Finished difference Result 2849 states and 10577 transitions.
[2022-02-09 02:18:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:00,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:00,419 INFO L225 Difference]: With dead ends: 2849
[2022-02-09 02:18:00,419 INFO L226 Difference]: Without dead ends: 2690
[2022-02-09 02:18:00,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:00,420 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:00,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 164 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:00,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states.
[2022-02-09 02:18:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1486.
[2022-02-09 02:18:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.985858585858586) internal successors, (5919), 1485 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5919 transitions.
[2022-02-09 02:18:00,459 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5919 transitions. Word has length 25
[2022-02-09 02:18:00,459 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:00,459 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5919 transitions.
[2022-02-09 02:18:00,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5919 transitions.
[2022-02-09 02:18:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:00,462 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:00,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:00,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2022-02-09 02:18:00,462 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:00,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:00,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1147433007, now seen corresponding path program 74 times
[2022-02-09 02:18:00,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:00,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617177151]
[2022-02-09 02:18:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:00,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:00,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:00,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617177151]
[2022-02-09 02:18:00,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617177151] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:00,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:00,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:00,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915135335]
[2022-02-09 02:18:00,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:00,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:00,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:00,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:00,627 INFO L87 Difference]: Start difference. First operand 1486 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:00,772 INFO L93 Difference]: Finished difference Result 2879 states and 10670 transitions.
[2022-02-09 02:18:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:00,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:00,778 INFO L225 Difference]: With dead ends: 2879
[2022-02-09 02:18:00,778 INFO L226 Difference]: Without dead ends: 2674
[2022-02-09 02:18:00,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:00,778 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 86 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:00,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 201 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:00,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states.
[2022-02-09 02:18:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1470.
[2022-02-09 02:18:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9911504424778763) internal successors, (5863), 1469 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5863 transitions.
[2022-02-09 02:18:00,806 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5863 transitions. Word has length 25
[2022-02-09 02:18:00,806 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:00,806 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5863 transitions.
[2022-02-09 02:18:00,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:00,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5863 transitions.
[2022-02-09 02:18:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:00,810 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:00,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:00,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2022-02-09 02:18:00,810 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1523564369, now seen corresponding path program 75 times
[2022-02-09 02:18:00,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:00,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239691798]
[2022-02-09 02:18:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:00,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:00,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:00,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239691798]
[2022-02-09 02:18:00,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239691798] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:00,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:00,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:00,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539909735]
[2022-02-09 02:18:00,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:00,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:00,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:00,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:00,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:00,956 INFO L87 Difference]: Start difference. First operand 1470 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:01,080 INFO L93 Difference]: Finished difference Result 2847 states and 10564 transitions.
[2022-02-09 02:18:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:01,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:01,089 INFO L225 Difference]: With dead ends: 2847
[2022-02-09 02:18:01,089 INFO L226 Difference]: Without dead ends: 2688
[2022-02-09 02:18:01,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:01,089 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:01,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states.
[2022-02-09 02:18:01,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 1486.
[2022-02-09 02:18:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9804713804713803) internal successors, (5911), 1485 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions.
[2022-02-09 02:18:01,120 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25
[2022-02-09 02:18:01,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:01,120 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions.
[2022-02-09 02:18:01,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions.
[2022-02-09 02:18:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:01,123 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:01,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:01,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2022-02-09 02:18:01,123 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:01,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1763104943, now seen corresponding path program 76 times
[2022-02-09 02:18:01,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:01,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731073857]
[2022-02-09 02:18:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:01,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:01,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:01,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731073857]
[2022-02-09 02:18:01,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731073857] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:01,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:01,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:01,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128463116]
[2022-02-09 02:18:01,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:01,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:01,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:01,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:01,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:01,283 INFO L87 Difference]: Start difference. First operand 1486 states and 5911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:01,434 INFO L93 Difference]: Finished difference Result 2875 states and 10652 transitions.
[2022-02-09 02:18:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:01,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:01,440 INFO L225 Difference]: With dead ends: 2875
[2022-02-09 02:18:01,441 INFO L226 Difference]: Without dead ends: 2672
[2022-02-09 02:18:01,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:01,441 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 91 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:01,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 184 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:01,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states.
[2022-02-09 02:18:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1470.
[2022-02-09 02:18:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9857045609257997) internal successors, (5855), 1469 states have internal predecessors, (5855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions.
[2022-02-09 02:18:01,468 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25
[2022-02-09 02:18:01,468 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:01,469 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions.
[2022-02-09 02:18:01,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions.
[2022-02-09 02:18:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:01,471 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:01,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:01,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2022-02-09 02:18:01,471 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:01,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1354240973, now seen corresponding path program 77 times
[2022-02-09 02:18:01,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:01,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231896982]
[2022-02-09 02:18:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:01,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:01,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:01,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231896982]
[2022-02-09 02:18:01,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231896982] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:01,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:01,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:01,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828627615]
[2022-02-09 02:18:01,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:01,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:01,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:01,609 INFO L87 Difference]: Start difference. First operand 1470 states and 5855 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:01,723 INFO L93 Difference]: Finished difference Result 2921 states and 10833 transitions.
[2022-02-09 02:18:01,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:01,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:01,729 INFO L225 Difference]: With dead ends: 2921
[2022-02-09 02:18:01,729 INFO L226 Difference]: Without dead ends: 2732
[2022-02-09 02:18:01,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:01,730 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:01,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 146 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:01,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states.
[2022-02-09 02:18:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1500.
[2022-02-09 02:18:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.9679786524349567) internal successors, (5948), 1499 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5948 transitions.
[2022-02-09 02:18:01,761 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5948 transitions. Word has length 25
[2022-02-09 02:18:01,761 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:01,761 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5948 transitions.
[2022-02-09 02:18:01,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5948 transitions.
[2022-02-09 02:18:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:01,764 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:01,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:01,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2022-02-09 02:18:01,764 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 897389329, now seen corresponding path program 78 times
[2022-02-09 02:18:01,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:01,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226072087]
[2022-02-09 02:18:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:01,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:01,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:01,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226072087]
[2022-02-09 02:18:01,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226072087] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:01,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:01,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:01,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641522778]
[2022-02-09 02:18:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:01,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:01,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:01,902 INFO L87 Difference]: Start difference. First operand 1500 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:02,011 INFO L93 Difference]: Finished difference Result 2919 states and 10798 transitions.
[2022-02-09 02:18:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:02,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:02,018 INFO L225 Difference]: With dead ends: 2919
[2022-02-09 02:18:02,018 INFO L226 Difference]: Without dead ends: 2694
[2022-02-09 02:18:02,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:02,019 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:02,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states.
[2022-02-09 02:18:02,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1462.
[2022-02-09 02:18:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9911019849418206) internal successors, (5831), 1461 states have internal predecessors, (5831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5831 transitions.
[2022-02-09 02:18:02,049 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5831 transitions. Word has length 25
[2022-02-09 02:18:02,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:02,049 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5831 transitions.
[2022-02-09 02:18:02,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5831 transitions.
[2022-02-09 02:18:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:02,052 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:02,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:02,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2022-02-09 02:18:02,052 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:02,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash -38400303, now seen corresponding path program 79 times
[2022-02-09 02:18:02,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:02,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569142856]
[2022-02-09 02:18:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:02,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:02,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:02,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569142856]
[2022-02-09 02:18:02,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569142856] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:02,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:02,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:02,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241591711]
[2022-02-09 02:18:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:02,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:02,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:02,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:02,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:02,178 INFO L87 Difference]: Start difference. First operand 1462 states and 5831 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:02,281 INFO L93 Difference]: Finished difference Result 2843 states and 10554 transitions.
[2022-02-09 02:18:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:02,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:02,288 INFO L225 Difference]: With dead ends: 2843
[2022-02-09 02:18:02,288 INFO L226 Difference]: Without dead ends: 2684
[2022-02-09 02:18:02,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:02,288 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:02,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 152 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:02,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states.
[2022-02-09 02:18:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1486.
[2022-02-09 02:18:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.983164983164983) internal successors, (5915), 1485 states have internal predecessors, (5915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5915 transitions.
[2022-02-09 02:18:02,327 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5915 transitions. Word has length 25
[2022-02-09 02:18:02,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:02,328 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5915 transitions.
[2022-02-09 02:18:02,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5915 transitions.
[2022-02-09 02:18:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:02,331 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:02,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:02,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2022-02-09 02:18:02,331 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1628335053, now seen corresponding path program 80 times
[2022-02-09 02:18:02,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:02,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484990091]
[2022-02-09 02:18:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:02,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:02,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:02,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484990091]
[2022-02-09 02:18:02,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484990091] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:02,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:02,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:02,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173734166]
[2022-02-09 02:18:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:02,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:02,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:02,454 INFO L87 Difference]: Start difference. First operand 1486 states and 5915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:02,575 INFO L93 Difference]: Finished difference Result 2873 states and 10647 transitions.
[2022-02-09 02:18:02,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:02,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:02,581 INFO L225 Difference]: With dead ends: 2873
[2022-02-09 02:18:02,582 INFO L226 Difference]: Without dead ends: 2668
[2022-02-09 02:18:02,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:02,582 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:02,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states.
[2022-02-09 02:18:02,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1470.
[2022-02-09 02:18:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.988427501701838) internal successors, (5859), 1469 states have internal predecessors, (5859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5859 transitions.
[2022-02-09 02:18:02,611 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5859 transitions. Word has length 25
[2022-02-09 02:18:02,611 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:02,611 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5859 transitions.
[2022-02-09 02:18:02,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5859 transitions.
[2022-02-09 02:18:02,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:02,614 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:02,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:02,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2022-02-09 02:18:02,614 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:02,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1726646575, now seen corresponding path program 81 times
[2022-02-09 02:18:02,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:02,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060464198]
[2022-02-09 02:18:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:02,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:02,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:02,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060464198]
[2022-02-09 02:18:02,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060464198] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:02,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:02,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:02,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760034985]
[2022-02-09 02:18:02,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:02,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:02,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:02,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:02,747 INFO L87 Difference]: Start difference. First operand 1470 states and 5859 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:02,851 INFO L93 Difference]: Finished difference Result 2837 states and 10529 transitions.
[2022-02-09 02:18:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:02,858 INFO L225 Difference]: With dead ends: 2837
[2022-02-09 02:18:02,858 INFO L226 Difference]: Without dead ends: 2678
[2022-02-09 02:18:02,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:02,858 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:02,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states.
[2022-02-09 02:18:02,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1486.
[2022-02-09 02:18:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.977777777777778) internal successors, (5907), 1485 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5907 transitions.
[2022-02-09 02:18:02,888 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5907 transitions. Word has length 25
[2022-02-09 02:18:02,888 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:02,888 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5907 transitions.
[2022-02-09 02:18:02,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:02,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5907 transitions.
[2022-02-09 02:18:02,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:02,890 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:02,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:02,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2022-02-09 02:18:02,891 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash -46149935, now seen corresponding path program 82 times
[2022-02-09 02:18:02,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:02,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286334322]
[2022-02-09 02:18:02,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:02,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:03,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:03,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286334322]
[2022-02-09 02:18:03,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286334322] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:03,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:03,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:03,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309318124]
[2022-02-09 02:18:03,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:03,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:03,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:03,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:03,035 INFO L87 Difference]: Start difference. First operand 1486 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:03,151 INFO L93 Difference]: Finished difference Result 2861 states and 10605 transitions.
[2022-02-09 02:18:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:03,158 INFO L225 Difference]: With dead ends: 2861
[2022-02-09 02:18:03,158 INFO L226 Difference]: Without dead ends: 2662
[2022-02-09 02:18:03,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:03,159 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:03,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 153 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states.
[2022-02-09 02:18:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1470.
[2022-02-09 02:18:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.982981620149762) internal successors, (5851), 1469 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5851 transitions.
[2022-02-09 02:18:03,189 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5851 transitions. Word has length 25
[2022-02-09 02:18:03,189 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:03,189 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5851 transitions.
[2022-02-09 02:18:03,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5851 transitions.
[2022-02-09 02:18:03,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:03,193 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:03,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:03,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2022-02-09 02:18:03,193 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash -309484621, now seen corresponding path program 83 times
[2022-02-09 02:18:03,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:03,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637003172]
[2022-02-09 02:18:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:03,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:03,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:03,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637003172]
[2022-02-09 02:18:03,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637003172] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:03,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:03,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:03,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830384027]
[2022-02-09 02:18:03,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:03,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:03,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:03,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:03,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:03,336 INFO L87 Difference]: Start difference. First operand 1470 states and 5851 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:03,449 INFO L93 Difference]: Finished difference Result 2909 states and 10791 transitions.
[2022-02-09 02:18:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:03,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:03,456 INFO L225 Difference]: With dead ends: 2909
[2022-02-09 02:18:03,456 INFO L226 Difference]: Without dead ends: 2720
[2022-02-09 02:18:03,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:03,457 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:03,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states.
[2022-02-09 02:18:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1498.
[2022-02-09 02:18:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.967267869071476) internal successors, (5939), 1497 states have internal predecessors, (5939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5939 transitions.
[2022-02-09 02:18:03,487 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5939 transitions. Word has length 25
[2022-02-09 02:18:03,487 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:03,487 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5939 transitions.
[2022-02-09 02:18:03,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5939 transitions.
[2022-02-09 02:18:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:03,489 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:03,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:03,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2022-02-09 02:18:03,490 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1701629167, now seen corresponding path program 84 times
[2022-02-09 02:18:03,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:03,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846295547]
[2022-02-09 02:18:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:03,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:03,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:03,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846295547]
[2022-02-09 02:18:03,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846295547] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:03,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:03,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:03,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319023485]
[2022-02-09 02:18:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:03,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:03,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:03,635 INFO L87 Difference]: Start difference. First operand 1498 states and 5939 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:03,791 INFO L93 Difference]: Finished difference Result 2903 states and 10746 transitions.
[2022-02-09 02:18:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:03,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:03,800 INFO L225 Difference]: With dead ends: 2903
[2022-02-09 02:18:03,800 INFO L226 Difference]: Without dead ends: 2684
[2022-02-09 02:18:03,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:03,801 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 94 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:03,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 170 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states.
[2022-02-09 02:18:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1462.
[2022-02-09 02:18:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9883641341546885) internal successors, (5827), 1461 states have internal predecessors, (5827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5827 transitions.
[2022-02-09 02:18:03,837 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5827 transitions. Word has length 25
[2022-02-09 02:18:03,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:03,838 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5827 transitions.
[2022-02-09 02:18:03,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5827 transitions.
[2022-02-09 02:18:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:03,841 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:03,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:03,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88
[2022-02-09 02:18:03,841 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:03,841 INFO L85 PathProgramCache]: Analyzing trace with hash 349604659, now seen corresponding path program 85 times
[2022-02-09 02:18:03,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:03,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939384575]
[2022-02-09 02:18:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:03,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:03,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:03,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939384575]
[2022-02-09 02:18:03,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939384575] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:03,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:03,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:03,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928340635]
[2022-02-09 02:18:03,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:03,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:03,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:03,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:03,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:03,994 INFO L87 Difference]: Start difference. First operand 1462 states and 5827 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:04,119 INFO L93 Difference]: Finished difference Result 2839 states and 10540 transitions.
[2022-02-09 02:18:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:04,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:04,130 INFO L225 Difference]: With dead ends: 2839
[2022-02-09 02:18:04,131 INFO L226 Difference]: Without dead ends: 2680
[2022-02-09 02:18:04,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:04,131 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:04,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states.
[2022-02-09 02:18:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1486.
[2022-02-09 02:18:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9804713804713803) internal successors, (5911), 1485 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions.
[2022-02-09 02:18:04,161 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25
[2022-02-09 02:18:04,161 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:04,161 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions.
[2022-02-09 02:18:04,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions.
[2022-02-09 02:18:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:04,164 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:04,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:04,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89
[2022-02-09 02:18:04,164 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1357902643, now seen corresponding path program 86 times
[2022-02-09 02:18:04,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:04,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122815927]
[2022-02-09 02:18:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:04,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:04,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:04,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122815927]
[2022-02-09 02:18:04,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122815927] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:04,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:04,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:04,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422010002]
[2022-02-09 02:18:04,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:04,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:04,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:04,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:04,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:04,290 INFO L87 Difference]: Start difference. First operand 1486 states and 5911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:04,414 INFO L93 Difference]: Finished difference Result 2867 states and 10628 transitions.
[2022-02-09 02:18:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:04,419 INFO L225 Difference]: With dead ends: 2867
[2022-02-09 02:18:04,420 INFO L226 Difference]: Without dead ends: 2664
[2022-02-09 02:18:04,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:04,420 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:04,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 177 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states.
[2022-02-09 02:18:04,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1470.
[2022-02-09 02:18:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9857045609257997) internal successors, (5855), 1469 states have internal predecessors, (5855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions.
[2022-02-09 02:18:04,455 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25
[2022-02-09 02:18:04,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:04,456 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions.
[2022-02-09 02:18:04,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions.
[2022-02-09 02:18:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:04,458 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:04,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:04,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90
[2022-02-09 02:18:04,458 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:04,458 INFO L85 PathProgramCache]: Analyzing trace with hash -497192303, now seen corresponding path program 87 times
[2022-02-09 02:18:04,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:04,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137775420]
[2022-02-09 02:18:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:04,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:04,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:04,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137775420]
[2022-02-09 02:18:04,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137775420] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:04,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:04,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:04,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701045676]
[2022-02-09 02:18:04,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:04,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:04,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:04,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:04,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:04,581 INFO L87 Difference]: Start difference. First operand 1470 states and 5855 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:04,678 INFO L93 Difference]: Finished difference Result 2835 states and 10520 transitions.
[2022-02-09 02:18:04,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:04,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:04,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:04,684 INFO L225 Difference]: With dead ends: 2835
[2022-02-09 02:18:04,684 INFO L226 Difference]: Without dead ends: 2676
[2022-02-09 02:18:04,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:04,685 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:04,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:04,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states.
[2022-02-09 02:18:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 1486.
[2022-02-09 02:18:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.975084175084175) internal successors, (5903), 1485 states have internal predecessors, (5903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5903 transitions.
[2022-02-09 02:18:04,712 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5903 transitions. Word has length 25
[2022-02-09 02:18:04,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:04,712 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5903 transitions.
[2022-02-09 02:18:04,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5903 transitions.
[2022-02-09 02:18:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:04,715 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:04,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:04,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91
[2022-02-09 02:18:04,715 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash -527051981, now seen corresponding path program 88 times
[2022-02-09 02:18:04,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:04,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390885253]
[2022-02-09 02:18:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:04,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:04,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:04,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390885253]
[2022-02-09 02:18:04,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390885253] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:04,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:04,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:04,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071415186]
[2022-02-09 02:18:04,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:04,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:04,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:04,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:04,859 INFO L87 Difference]: Start difference. First operand 1486 states and 5903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:04,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:04,978 INFO L93 Difference]: Finished difference Result 2859 states and 10596 transitions.
[2022-02-09 02:18:04,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:04,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:04,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:04,984 INFO L225 Difference]: With dead ends: 2859
[2022-02-09 02:18:04,984 INFO L226 Difference]: Without dead ends: 2660
[2022-02-09 02:18:04,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:04,985 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:04,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 160 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states.
[2022-02-09 02:18:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1470.
[2022-02-09 02:18:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9802586793737236) internal successors, (5847), 1469 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5847 transitions.
[2022-02-09 02:18:05,013 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5847 transitions. Word has length 25
[2022-02-09 02:18:05,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:05,014 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5847 transitions.
[2022-02-09 02:18:05,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5847 transitions.
[2022-02-09 02:18:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:05,016 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:05,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:05,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92
[2022-02-09 02:18:05,016 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:05,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1407470387, now seen corresponding path program 89 times
[2022-02-09 02:18:05,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:05,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716573141]
[2022-02-09 02:18:05,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:05,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:05,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:05,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716573141]
[2022-02-09 02:18:05,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716573141] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:05,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:05,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:05,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703415080]
[2022-02-09 02:18:05,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:05,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:05,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:05,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:05,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:05,141 INFO L87 Difference]: Start difference. First operand 1470 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:05,261 INFO L93 Difference]: Finished difference Result 2903 states and 10772 transitions.
[2022-02-09 02:18:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:05,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:05,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:05,268 INFO L225 Difference]: With dead ends: 2903
[2022-02-09 02:18:05,268 INFO L226 Difference]: Without dead ends: 2716
[2022-02-09 02:18:05,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:05,268 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 95 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:05,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 162 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states.
[2022-02-09 02:18:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1498.
[2022-02-09 02:18:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9645958583834333) internal successors, (5935), 1497 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5935 transitions.
[2022-02-09 02:18:05,295 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5935 transitions. Word has length 25
[2022-02-09 02:18:05,295 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:05,295 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5935 transitions.
[2022-02-09 02:18:05,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5935 transitions.
[2022-02-09 02:18:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:05,297 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:05,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:05,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93
[2022-02-09 02:18:05,298 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:05,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:05,298 INFO L85 PathProgramCache]: Analyzing trace with hash -635866607, now seen corresponding path program 90 times
[2022-02-09 02:18:05,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:05,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27241394]
[2022-02-09 02:18:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:05,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:05,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:05,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27241394]
[2022-02-09 02:18:05,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27241394] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:05,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:05,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:05,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125228621]
[2022-02-09 02:18:05,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:05,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:05,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:05,449 INFO L87 Difference]: Start difference. First operand 1498 states and 5935 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:05,568 INFO L93 Difference]: Finished difference Result 2899 states and 10732 transitions.
[2022-02-09 02:18:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:05,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:05,576 INFO L225 Difference]: With dead ends: 2899
[2022-02-09 02:18:05,576 INFO L226 Difference]: Without dead ends: 2680
[2022-02-09 02:18:05,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:05,576 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:05,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 151 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states.
[2022-02-09 02:18:05,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1462.
[2022-02-09 02:18:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9856262833675564) internal successors, (5823), 1461 states have internal predecessors, (5823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5823 transitions.
[2022-02-09 02:18:05,608 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5823 transitions. Word has length 25
[2022-02-09 02:18:05,608 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:05,608 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5823 transitions.
[2022-02-09 02:18:05,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5823 transitions.
[2022-02-09 02:18:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:05,610 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:05,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:05,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94
[2022-02-09 02:18:05,611 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1073708949, now seen corresponding path program 91 times
[2022-02-09 02:18:05,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:05,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967945791]
[2022-02-09 02:18:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:05,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:05,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:05,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967945791]
[2022-02-09 02:18:05,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967945791] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:05,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:05,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:05,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693522112]
[2022-02-09 02:18:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:05,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:05,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:05,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:05,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:05,758 INFO L87 Difference]: Start difference. First operand 1462 states and 5823 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:05,880 INFO L93 Difference]: Finished difference Result 2975 states and 11062 transitions.
[2022-02-09 02:18:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:05,887 INFO L225 Difference]: With dead ends: 2975
[2022-02-09 02:18:05,887 INFO L226 Difference]: Without dead ends: 2786
[2022-02-09 02:18:05,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:05,887 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:05,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 156 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:05,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states.
[2022-02-09 02:18:05,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1506.
[2022-02-09 02:18:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9740863787375416) internal successors, (5981), 1505 states have internal predecessors, (5981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5981 transitions.
[2022-02-09 02:18:05,916 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5981 transitions. Word has length 25
[2022-02-09 02:18:05,916 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:05,916 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5981 transitions.
[2022-02-09 02:18:05,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5981 transitions.
[2022-02-09 02:18:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:05,918 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:05,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:05,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95
[2022-02-09 02:18:05,918 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash -969628045, now seen corresponding path program 92 times
[2022-02-09 02:18:05,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:05,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768894765]
[2022-02-09 02:18:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:05,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:06,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:06,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768894765]
[2022-02-09 02:18:06,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768894765] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:06,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:06,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:06,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786069890]
[2022-02-09 02:18:06,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:06,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:06,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:06,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:06,046 INFO L87 Difference]: Start difference. First operand 1506 states and 5981 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:06,166 INFO L93 Difference]: Finished difference Result 2973 states and 11027 transitions.
[2022-02-09 02:18:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:06,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:06,173 INFO L225 Difference]: With dead ends: 2973
[2022-02-09 02:18:06,174 INFO L226 Difference]: Without dead ends: 2756
[2022-02-09 02:18:06,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:06,174 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 101 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:06,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:06,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states.
[2022-02-09 02:18:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1476.
[2022-02-09 02:18:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.982372881355932) internal successors, (5874), 1475 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5874 transitions.
[2022-02-09 02:18:06,202 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5874 transitions. Word has length 25
[2022-02-09 02:18:06,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:06,202 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5874 transitions.
[2022-02-09 02:18:06,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5874 transitions.
[2022-02-09 02:18:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:06,205 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:06,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:06,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96
[2022-02-09 02:18:06,205 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 226911987, now seen corresponding path program 93 times
[2022-02-09 02:18:06,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:06,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072327762]
[2022-02-09 02:18:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:06,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:06,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:06,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072327762]
[2022-02-09 02:18:06,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072327762] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:06,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:06,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:06,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032970817]
[2022-02-09 02:18:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:06,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:06,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:06,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:06,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:06,337 INFO L87 Difference]: Start difference. First operand 1476 states and 5874 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:06,462 INFO L93 Difference]: Finished difference Result 2969 states and 11029 transitions.
[2022-02-09 02:18:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:06,469 INFO L225 Difference]: With dead ends: 2969
[2022-02-09 02:18:06,469 INFO L226 Difference]: Without dead ends: 2780
[2022-02-09 02:18:06,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:06,470 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:06,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 165 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states.
[2022-02-09 02:18:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1504.
[2022-02-09 02:18:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9667332002661344) internal successors, (5962), 1503 states have internal predecessors, (5962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5962 transitions.
[2022-02-09 02:18:06,497 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5962 transitions. Word has length 25
[2022-02-09 02:18:06,497 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:06,497 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5962 transitions.
[2022-02-09 02:18:06,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5962 transitions.
[2022-02-09 02:18:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:06,500 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:06,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:06,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97
[2022-02-09 02:18:06,500 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1419378419, now seen corresponding path program 94 times
[2022-02-09 02:18:06,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:06,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466845056]
[2022-02-09 02:18:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:06,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:06,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:06,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466845056]
[2022-02-09 02:18:06,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466845056] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:06,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:06,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:06,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62778052]
[2022-02-09 02:18:06,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:06,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:06,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:06,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:06,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:06,636 INFO L87 Difference]: Start difference. First operand 1504 states and 5962 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:06,754 INFO L93 Difference]: Finished difference Result 2963 states and 10984 transitions.
[2022-02-09 02:18:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:06,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:06,760 INFO L225 Difference]: With dead ends: 2963
[2022-02-09 02:18:06,760 INFO L226 Difference]: Without dead ends: 2752
[2022-02-09 02:18:06,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:06,761 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:06,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states.
[2022-02-09 02:18:06,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1476.
[2022-02-09 02:18:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.9728813559322034) internal successors, (5860), 1475 states have internal predecessors, (5860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5860 transitions.
[2022-02-09 02:18:06,786 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5860 transitions. Word has length 25
[2022-02-09 02:18:06,787 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:06,787 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5860 transitions.
[2022-02-09 02:18:06,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5860 transitions.
[2022-02-09 02:18:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:06,789 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:06,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:06,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98
[2022-02-09 02:18:06,789 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:06,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1209259601, now seen corresponding path program 95 times
[2022-02-09 02:18:06,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:06,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079327548]
[2022-02-09 02:18:06,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:06,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:06,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:06,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079327548]
[2022-02-09 02:18:06,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079327548] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:06,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:06,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:06,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88402232]
[2022-02-09 02:18:06,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:06,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:06,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:06,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:06,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:06,910 INFO L87 Difference]: Start difference. First operand 1476 states and 5860 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:07,034 INFO L93 Difference]: Finished difference Result 2965 states and 11005 transitions.
[2022-02-09 02:18:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:07,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:07,042 INFO L225 Difference]: With dead ends: 2965
[2022-02-09 02:18:07,042 INFO L226 Difference]: Without dead ends: 2778
[2022-02-09 02:18:07,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:07,043 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:07,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 156 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states.
[2022-02-09 02:18:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 1504.
[2022-02-09 02:18:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9574184963406522) internal successors, (5948), 1503 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5948 transitions.
[2022-02-09 02:18:07,072 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5948 transitions. Word has length 25
[2022-02-09 02:18:07,072 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:07,072 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5948 transitions.
[2022-02-09 02:18:07,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5948 transitions.
[2022-02-09 02:18:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:07,074 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:07,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:07,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99
[2022-02-09 02:18:07,074 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:07,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2004645069, now seen corresponding path program 96 times
[2022-02-09 02:18:07,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:07,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515719994]
[2022-02-09 02:18:07,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:07,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:07,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:07,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515719994]
[2022-02-09 02:18:07,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515719994] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:07,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:07,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:07,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309579]
[2022-02-09 02:18:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:07,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:07,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:07,213 INFO L87 Difference]: Start difference. First operand 1504 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:07,336 INFO L93 Difference]: Finished difference Result 2961 states and 10965 transitions.
[2022-02-09 02:18:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:07,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:07,343 INFO L225 Difference]: With dead ends: 2961
[2022-02-09 02:18:07,344 INFO L226 Difference]: Without dead ends: 2732
[2022-02-09 02:18:07,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:07,344 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:07,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states.
[2022-02-09 02:18:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1458.
[2022-02-09 02:18:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9897048730267675) internal successors, (5813), 1457 states have internal predecessors, (5813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5813 transitions.
[2022-02-09 02:18:07,373 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5813 transitions. Word has length 25
[2022-02-09 02:18:07,373 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:07,373 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5813 transitions.
[2022-02-09 02:18:07,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5813 transitions.
[2022-02-09 02:18:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:07,375 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:07,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:07,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100
[2022-02-09 02:18:07,376 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash -894688137, now seen corresponding path program 97 times
[2022-02-09 02:18:07,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:07,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666604793]
[2022-02-09 02:18:07,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:07,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:07,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:07,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666604793]
[2022-02-09 02:18:07,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666604793] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:07,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:07,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:07,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121335596]
[2022-02-09 02:18:07,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:07,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:07,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:07,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:07,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:07,540 INFO L87 Difference]: Start difference. First operand 1458 states and 5813 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:07,661 INFO L93 Difference]: Finished difference Result 3229 states and 12055 transitions.
[2022-02-09 02:18:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:07,668 INFO L225 Difference]: With dead ends: 3229
[2022-02-09 02:18:07,668 INFO L226 Difference]: Without dead ends: 3040
[2022-02-09 02:18:07,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:07,668 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:07,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:07,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states.
[2022-02-09 02:18:07,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 1525.
[2022-02-09 02:18:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.9783464566929134) internal successors, (6063), 1524 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 6063 transitions.
[2022-02-09 02:18:07,697 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 6063 transitions. Word has length 25
[2022-02-09 02:18:07,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:07,697 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 6063 transitions.
[2022-02-09 02:18:07,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 6063 transitions.
[2022-02-09 02:18:07,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:07,699 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:07,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:07,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101
[2022-02-09 02:18:07,700 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:07,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:07,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1356942165, now seen corresponding path program 98 times
[2022-02-09 02:18:07,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:07,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727679805]
[2022-02-09 02:18:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:07,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:07,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:07,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727679805]
[2022-02-09 02:18:07,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727679805] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:07,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:07,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:07,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765098260]
[2022-02-09 02:18:07,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:07,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:07,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:07,864 INFO L87 Difference]: Start difference. First operand 1525 states and 6063 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:07,976 INFO L93 Difference]: Finished difference Result 3227 states and 12020 transitions.
[2022-02-09 02:18:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:07,984 INFO L225 Difference]: With dead ends: 3227
[2022-02-09 02:18:07,984 INFO L226 Difference]: Without dead ends: 3010
[2022-02-09 02:18:07,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:07,984 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:07,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 136 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:07,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states.
[2022-02-09 02:18:08,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1495.
[2022-02-09 02:18:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 3.9866131191432395) internal successors, (5956), 1494 states have internal predecessors, (5956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5956 transitions.
[2022-02-09 02:18:08,012 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5956 transitions. Word has length 25
[2022-02-09 02:18:08,012 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:08,013 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5956 transitions.
[2022-02-09 02:18:08,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5956 transitions.
[2022-02-09 02:18:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:08,015 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:08,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:08,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102
[2022-02-09 02:18:08,015 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1741485099, now seen corresponding path program 99 times
[2022-02-09 02:18:08,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:08,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541457396]
[2022-02-09 02:18:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:08,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:08,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:08,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541457396]
[2022-02-09 02:18:08,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541457396] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:08,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:08,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:08,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688632341]
[2022-02-09 02:18:08,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:08,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:08,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:08,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:08,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:08,137 INFO L87 Difference]: Start difference. First operand 1495 states and 5956 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:08,251 INFO L93 Difference]: Finished difference Result 3223 states and 12022 transitions.
[2022-02-09 02:18:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:08,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:08,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:08,258 INFO L225 Difference]: With dead ends: 3223
[2022-02-09 02:18:08,258 INFO L226 Difference]: Without dead ends: 3034
[2022-02-09 02:18:08,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:08,258 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:08,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states.
[2022-02-09 02:18:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 1523.
[2022-02-09 02:18:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.971090670170828) internal successors, (6044), 1522 states have internal predecessors, (6044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6044 transitions.
[2022-02-09 02:18:08,298 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6044 transitions. Word has length 25
[2022-02-09 02:18:08,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:08,299 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6044 transitions.
[2022-02-09 02:18:08,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6044 transitions.
[2022-02-09 02:18:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:08,302 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:08,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:08,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103
[2022-02-09 02:18:08,302 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:08,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash -549018667, now seen corresponding path program 100 times
[2022-02-09 02:18:08,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:08,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938234385]
[2022-02-09 02:18:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:08,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:08,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:08,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938234385]
[2022-02-09 02:18:08,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938234385] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:08,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:08,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:08,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633437590]
[2022-02-09 02:18:08,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:08,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:08,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:08,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:08,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:08,435 INFO L87 Difference]: Start difference. First operand 1523 states and 6044 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:08,554 INFO L93 Difference]: Finished difference Result 3217 states and 11977 transitions.
[2022-02-09 02:18:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:08,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:08,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:08,561 INFO L225 Difference]: With dead ends: 3217
[2022-02-09 02:18:08,561 INFO L226 Difference]: Without dead ends: 3006
[2022-02-09 02:18:08,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:08,562 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 97 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:08,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states.
[2022-02-09 02:18:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1495.
[2022-02-09 02:18:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 3.9772423025435075) internal successors, (5942), 1494 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5942 transitions.
[2022-02-09 02:18:08,590 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5942 transitions. Word has length 25
[2022-02-09 02:18:08,590 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:08,590 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5942 transitions.
[2022-02-09 02:18:08,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5942 transitions.
[2022-02-09 02:18:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:08,592 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:08,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:08,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104
[2022-02-09 02:18:08,592 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:08,593 INFO L85 PathProgramCache]: Analyzing trace with hash -759137485, now seen corresponding path program 101 times
[2022-02-09 02:18:08,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:08,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630026866]
[2022-02-09 02:18:08,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:08,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:08,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:08,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630026866]
[2022-02-09 02:18:08,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630026866] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:08,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:08,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:08,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486448387]
[2022-02-09 02:18:08,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:08,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:08,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:08,714 INFO L87 Difference]: Start difference. First operand 1495 states and 5942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:08,826 INFO L93 Difference]: Finished difference Result 3219 states and 11998 transitions.
[2022-02-09 02:18:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:08,834 INFO L225 Difference]: With dead ends: 3219
[2022-02-09 02:18:08,834 INFO L226 Difference]: Without dead ends: 3032
[2022-02-09 02:18:08,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:08,834 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:08,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:08,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states.
[2022-02-09 02:18:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1523.
[2022-02-09 02:18:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.961892247043364) internal successors, (6030), 1522 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6030 transitions.
[2022-02-09 02:18:08,867 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6030 transitions. Word has length 25
[2022-02-09 02:18:08,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:08,867 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6030 transitions.
[2022-02-09 02:18:08,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6030 transitions.
[2022-02-09 02:18:08,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:08,870 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:08,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:08,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105
[2022-02-09 02:18:08,870 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:08,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash 321925141, now seen corresponding path program 102 times
[2022-02-09 02:18:08,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:08,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844453694]
[2022-02-09 02:18:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:08,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:09,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:09,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844453694]
[2022-02-09 02:18:09,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844453694] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:09,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:09,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:09,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076404905]
[2022-02-09 02:18:09,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:09,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:09,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:09,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:09,016 INFO L87 Difference]: Start difference. First operand 1523 states and 6030 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:09,154 INFO L93 Difference]: Finished difference Result 3215 states and 11958 transitions.
[2022-02-09 02:18:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:09,162 INFO L225 Difference]: With dead ends: 3215
[2022-02-09 02:18:09,162 INFO L226 Difference]: Without dead ends: 2990
[2022-02-09 02:18:09,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:09,162 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 100 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:09,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 147 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states.
[2022-02-09 02:18:09,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1481.
[2022-02-09 02:18:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.985135135135135) internal successors, (5898), 1480 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5898 transitions.
[2022-02-09 02:18:09,189 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5898 transitions. Word has length 25
[2022-02-09 02:18:09,190 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:09,190 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5898 transitions.
[2022-02-09 02:18:09,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5898 transitions.
[2022-02-09 02:18:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:09,192 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:09,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:09,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106
[2022-02-09 02:18:09,192 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:09,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1426973141, now seen corresponding path program 103 times
[2022-02-09 02:18:09,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:09,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970235302]
[2022-02-09 02:18:09,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:09,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:09,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:09,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970235302]
[2022-02-09 02:18:09,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970235302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:09,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:09,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:09,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085829742]
[2022-02-09 02:18:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:09,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:09,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:09,315 INFO L87 Difference]: Start difference. First operand 1481 states and 5898 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:09,458 INFO L93 Difference]: Finished difference Result 3346 states and 12460 transitions.
[2022-02-09 02:18:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:09,466 INFO L225 Difference]: With dead ends: 3346
[2022-02-09 02:18:09,466 INFO L226 Difference]: Without dead ends: 3157
[2022-02-09 02:18:09,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:09,466 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 99 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:09,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 179 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states.
[2022-02-09 02:18:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 1550.
[2022-02-09 02:18:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.9664299548095547) internal successors, (6144), 1549 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6144 transitions.
[2022-02-09 02:18:09,496 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6144 transitions. Word has length 25
[2022-02-09 02:18:09,496 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:09,496 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6144 transitions.
[2022-02-09 02:18:09,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6144 transitions.
[2022-02-09 02:18:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:09,498 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:09,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:09,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107
[2022-02-09 02:18:09,499 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:09,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash -616363853, now seen corresponding path program 104 times
[2022-02-09 02:18:09,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:09,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867029468]
[2022-02-09 02:18:09,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:09,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:09,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:09,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867029468]
[2022-02-09 02:18:09,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867029468] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:09,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:09,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:09,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448209657]
[2022-02-09 02:18:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:09,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:09,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:09,621 INFO L87 Difference]: Start difference. First operand 1550 states and 6144 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:09,750 INFO L93 Difference]: Finished difference Result 3344 states and 12425 transitions.
[2022-02-09 02:18:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:09,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:09,758 INFO L225 Difference]: With dead ends: 3344
[2022-02-09 02:18:09,758 INFO L226 Difference]: Without dead ends: 3127
[2022-02-09 02:18:09,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:09,759 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:09,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 157 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:09,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states.
[2022-02-09 02:18:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 1520.
[2022-02-09 02:18:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1519 states have (on average 3.9736668861092825) internal successors, (6036), 1519 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6036 transitions.
[2022-02-09 02:18:09,788 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6036 transitions. Word has length 25
[2022-02-09 02:18:09,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:09,788 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6036 transitions.
[2022-02-09 02:18:09,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6036 transitions.
[2022-02-09 02:18:09,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:09,790 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:09,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:09,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108
[2022-02-09 02:18:09,790 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:09,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:09,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1852713429, now seen corresponding path program 105 times
[2022-02-09 02:18:09,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:09,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478054135]
[2022-02-09 02:18:09,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:09,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:09,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:09,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478054135]
[2022-02-09 02:18:09,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478054135] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:09,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:09,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:09,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185797007]
[2022-02-09 02:18:09,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:09,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:09,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:09,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:09,923 INFO L87 Difference]: Start difference. First operand 1520 states and 6036 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:10,047 INFO L93 Difference]: Finished difference Result 3414 states and 12679 transitions.
[2022-02-09 02:18:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:10,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:10,057 INFO L225 Difference]: With dead ends: 3414
[2022-02-09 02:18:10,057 INFO L226 Difference]: Without dead ends: 3225
[2022-02-09 02:18:10,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:10,057 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 118 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:10,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 137 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states.
[2022-02-09 02:18:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 1583.
[2022-02-09 02:18:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 3.946270543615676) internal successors, (6243), 1582 states have internal predecessors, (6243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 6243 transitions.
[2022-02-09 02:18:10,108 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 6243 transitions. Word has length 25
[2022-02-09 02:18:10,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:10,108 INFO L470 AbstractCegarLoop]: Abstraction has 1583 states and 6243 transitions.
[2022-02-09 02:18:10,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 6243 transitions.
[2022-02-09 02:18:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:10,111 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:10,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:10,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109
[2022-02-09 02:18:10,111 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:10,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1296925141, now seen corresponding path program 106 times
[2022-02-09 02:18:10,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:10,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856849190]
[2022-02-09 02:18:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:10,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:10,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:10,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856849190]
[2022-02-09 02:18:10,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856849190] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:10,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:10,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:10,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198091676]
[2022-02-09 02:18:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:10,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:10,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:10,234 INFO L87 Difference]: Start difference. First operand 1583 states and 6243 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:10,357 INFO L93 Difference]: Finished difference Result 3447 states and 12762 transitions.
[2022-02-09 02:18:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:10,364 INFO L225 Difference]: With dead ends: 3447
[2022-02-09 02:18:10,364 INFO L226 Difference]: Without dead ends: 3162
[2022-02-09 02:18:10,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:10,365 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:10,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 157 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states.
[2022-02-09 02:18:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1520.
[2022-02-09 02:18:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1519 states have (on average 3.953258722843976) internal successors, (6005), 1519 states have internal predecessors, (6005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6005 transitions.
[2022-02-09 02:18:10,395 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6005 transitions. Word has length 25
[2022-02-09 02:18:10,395 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:10,395 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6005 transitions.
[2022-02-09 02:18:10,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6005 transitions.
[2022-02-09 02:18:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:10,397 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:10,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:10,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110
[2022-02-09 02:18:10,398 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1459906253, now seen corresponding path program 107 times
[2022-02-09 02:18:10,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:10,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193085501]
[2022-02-09 02:18:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:10,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:10,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:10,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193085501]
[2022-02-09 02:18:10,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193085501] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:10,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:10,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:10,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256744041]
[2022-02-09 02:18:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:10,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:10,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:10,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:10,526 INFO L87 Difference]: Start difference. First operand 1520 states and 6005 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:10,670 INFO L93 Difference]: Finished difference Result 3393 states and 12587 transitions.
[2022-02-09 02:18:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:10,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:10,679 INFO L225 Difference]: With dead ends: 3393
[2022-02-09 02:18:10,679 INFO L226 Difference]: Without dead ends: 3206
[2022-02-09 02:18:10,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:10,679 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:10,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states.
[2022-02-09 02:18:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 1566.
[2022-02-09 02:18:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 3.9373801916932907) internal successors, (6162), 1565 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 6162 transitions.
[2022-02-09 02:18:10,716 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 6162 transitions. Word has length 25
[2022-02-09 02:18:10,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:10,716 INFO L470 AbstractCegarLoop]: Abstraction has 1566 states and 6162 transitions.
[2022-02-09 02:18:10,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 6162 transitions.
[2022-02-09 02:18:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:10,719 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:10,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:10,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111
[2022-02-09 02:18:10,719 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:10,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 477671445, now seen corresponding path program 108 times
[2022-02-09 02:18:10,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:10,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564984645]
[2022-02-09 02:18:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:10,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:10,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:10,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564984645]
[2022-02-09 02:18:10,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564984645] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:10,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:10,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:10,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807787680]
[2022-02-09 02:18:10,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:10,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:10,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:10,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:10,852 INFO L87 Difference]: Start difference. First operand 1566 states and 6162 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:10,985 INFO L93 Difference]: Finished difference Result 3428 states and 12676 transitions.
[2022-02-09 02:18:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:10,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:10,996 INFO L225 Difference]: With dead ends: 3428
[2022-02-09 02:18:10,996 INFO L226 Difference]: Without dead ends: 3121
[2022-02-09 02:18:10,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:10,996 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:10,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 177 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states.
[2022-02-09 02:18:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1481.
[2022-02-09 02:18:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.972297297297297) internal successors, (5879), 1480 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5879 transitions.
[2022-02-09 02:18:11,032 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5879 transitions. Word has length 25
[2022-02-09 02:18:11,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:11,032 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5879 transitions.
[2022-02-09 02:18:11,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5879 transitions.
[2022-02-09 02:18:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:11,034 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:11,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:11,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112
[2022-02-09 02:18:11,035 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:11,035 INFO L85 PathProgramCache]: Analyzing trace with hash 570225075, now seen corresponding path program 109 times
[2022-02-09 02:18:11,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:11,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592278221]
[2022-02-09 02:18:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:11,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:11,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:11,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592278221]
[2022-02-09 02:18:11,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592278221] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:11,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:11,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:11,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540447333]
[2022-02-09 02:18:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:11,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:11,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:11,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:11,159 INFO L87 Difference]: Start difference. First operand 1481 states and 5879 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:11,286 INFO L93 Difference]: Finished difference Result 3323 states and 12372 transitions.
[2022-02-09 02:18:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:11,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:11,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:11,293 INFO L225 Difference]: With dead ends: 3323
[2022-02-09 02:18:11,293 INFO L226 Difference]: Without dead ends: 3134
[2022-02-09 02:18:11,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:11,294 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:11,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states.
[2022-02-09 02:18:11,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1539.
[2022-02-09 02:18:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.963589076723017) internal successors, (6096), 1538 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 6096 transitions.
[2022-02-09 02:18:11,323 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 6096 transitions. Word has length 25
[2022-02-09 02:18:11,323 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:11,323 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 6096 transitions.
[2022-02-09 02:18:11,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 6096 transitions.
[2022-02-09 02:18:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:11,326 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:11,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:11,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113
[2022-02-09 02:18:11,326 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1762691507, now seen corresponding path program 110 times
[2022-02-09 02:18:11,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:11,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89129096]
[2022-02-09 02:18:11,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:11,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:11,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:11,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89129096]
[2022-02-09 02:18:11,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89129096] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:11,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:11,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:11,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302204252]
[2022-02-09 02:18:11,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:11,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:11,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:11,445 INFO L87 Difference]: Start difference. First operand 1539 states and 6096 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:11,571 INFO L93 Difference]: Finished difference Result 3317 states and 12327 transitions.
[2022-02-09 02:18:11,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:11,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:11,579 INFO L225 Difference]: With dead ends: 3317
[2022-02-09 02:18:11,579 INFO L226 Difference]: Without dead ends: 3106
[2022-02-09 02:18:11,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:11,580 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:11,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 148 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:11,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states.
[2022-02-09 02:18:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1511.
[2022-02-09 02:18:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9695364238410598) internal successors, (5994), 1510 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5994 transitions.
[2022-02-09 02:18:11,609 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5994 transitions. Word has length 25
[2022-02-09 02:18:11,609 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:11,609 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5994 transitions.
[2022-02-09 02:18:11,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5994 transitions.
[2022-02-09 02:18:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:11,612 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:11,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:11,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114
[2022-02-09 02:18:11,612 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -740355947, now seen corresponding path program 111 times
[2022-02-09 02:18:11,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:11,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990062554]
[2022-02-09 02:18:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:11,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:11,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:11,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990062554]
[2022-02-09 02:18:11,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990062554] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:11,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:11,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:11,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413940723]
[2022-02-09 02:18:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:11,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:11,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:11,736 INFO L87 Difference]: Start difference. First operand 1511 states and 5994 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:11,857 INFO L93 Difference]: Finished difference Result 3397 states and 12611 transitions.
[2022-02-09 02:18:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:11,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:11,865 INFO L225 Difference]: With dead ends: 3397
[2022-02-09 02:18:11,865 INFO L226 Difference]: Without dead ends: 3208
[2022-02-09 02:18:11,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:11,865 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:11,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 137 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states.
[2022-02-09 02:18:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 1574.
[2022-02-09 02:18:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.9421487603305785) internal successors, (6201), 1573 states have internal predecessors, (6201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 6201 transitions.
[2022-02-09 02:18:11,896 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 6201 transitions. Word has length 25
[2022-02-09 02:18:11,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:11,897 INFO L470 AbstractCegarLoop]: Abstraction has 1574 states and 6201 transitions.
[2022-02-09 02:18:11,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 6201 transitions.
[2022-02-09 02:18:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:11,899 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:11,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:11,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115
[2022-02-09 02:18:11,899 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -726136397, now seen corresponding path program 112 times
[2022-02-09 02:18:11,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:11,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024464312]
[2022-02-09 02:18:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:11,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:12,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:12,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024464312]
[2022-02-09 02:18:12,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024464312] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:12,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:12,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:12,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760496064]
[2022-02-09 02:18:12,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:12,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:12,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:12,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:12,032 INFO L87 Difference]: Start difference. First operand 1574 states and 6201 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:12,156 INFO L93 Difference]: Finished difference Result 3430 states and 12694 transitions.
[2022-02-09 02:18:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:12,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:12,165 INFO L225 Difference]: With dead ends: 3430
[2022-02-09 02:18:12,165 INFO L226 Difference]: Without dead ends: 3145
[2022-02-09 02:18:12,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:12,165 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:12,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 152 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:12,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states.
[2022-02-09 02:18:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 1511.
[2022-02-09 02:18:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9496688741721853) internal successors, (5964), 1510 states have internal predecessors, (5964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5964 transitions.
[2022-02-09 02:18:12,222 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5964 transitions. Word has length 25
[2022-02-09 02:18:12,222 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:12,222 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5964 transitions.
[2022-02-09 02:18:12,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5964 transitions.
[2022-02-09 02:18:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:12,225 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:12,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:12,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116
[2022-02-09 02:18:12,225 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash 226091443, now seen corresponding path program 113 times
[2022-02-09 02:18:12,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:12,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911145487]
[2022-02-09 02:18:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:12,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:12,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:12,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911145487]
[2022-02-09 02:18:12,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911145487] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:12,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:12,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:12,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81160194]
[2022-02-09 02:18:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:12,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:12,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:12,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:12,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:12,346 INFO L87 Difference]: Start difference. First operand 1511 states and 5964 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:12,469 INFO L93 Difference]: Finished difference Result 3366 states and 12489 transitions.
[2022-02-09 02:18:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:12,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:12,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:12,477 INFO L225 Difference]: With dead ends: 3366
[2022-02-09 02:18:12,478 INFO L226 Difference]: Without dead ends: 3183
[2022-02-09 02:18:12,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:12,478 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:12,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states.
[2022-02-09 02:18:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 1555.
[2022-02-09 02:18:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 3.9356499356499355) internal successors, (6116), 1554 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6116 transitions.
[2022-02-09 02:18:12,509 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6116 transitions. Word has length 25
[2022-02-09 02:18:12,509 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:12,509 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 6116 transitions.
[2022-02-09 02:18:12,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6116 transitions.
[2022-02-09 02:18:12,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:12,512 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:12,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:12,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117
[2022-02-09 02:18:12,512 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -843427563, now seen corresponding path program 114 times
[2022-02-09 02:18:12,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:12,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912049755]
[2022-02-09 02:18:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:12,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:12,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:12,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912049755]
[2022-02-09 02:18:12,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912049755] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:12,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:12,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:12,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047593242]
[2022-02-09 02:18:12,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:12,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:12,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:12,634 INFO L87 Difference]: Start difference. First operand 1555 states and 6116 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:12,752 INFO L93 Difference]: Finished difference Result 3405 states and 12592 transitions.
[2022-02-09 02:18:12,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:12,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:12,759 INFO L225 Difference]: With dead ends: 3405
[2022-02-09 02:18:12,760 INFO L226 Difference]: Without dead ends: 3109
[2022-02-09 02:18:12,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:12,760 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:12,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 158 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:12,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states.
[2022-02-09 02:18:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 1481.
[2022-02-09 02:18:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.962162162162162) internal successors, (5864), 1480 states have internal predecessors, (5864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5864 transitions.
[2022-02-09 02:18:12,788 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5864 transitions. Word has length 25
[2022-02-09 02:18:12,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:12,788 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5864 transitions.
[2022-02-09 02:18:12,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:12,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5864 transitions.
[2022-02-09 02:18:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:12,790 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:12,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:12,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118
[2022-02-09 02:18:12,790 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:12,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1542621585, now seen corresponding path program 115 times
[2022-02-09 02:18:12,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:12,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628166275]
[2022-02-09 02:18:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:12,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:12,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:12,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628166275]
[2022-02-09 02:18:12,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628166275] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:12,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:12,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:12,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973313717]
[2022-02-09 02:18:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:12,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:12,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:12,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:12,910 INFO L87 Difference]: Start difference. First operand 1481 states and 5864 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:13,035 INFO L93 Difference]: Finished difference Result 3292 states and 12263 transitions.
[2022-02-09 02:18:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:13,044 INFO L225 Difference]: With dead ends: 3292
[2022-02-09 02:18:13,045 INFO L226 Difference]: Without dead ends: 3105
[2022-02-09 02:18:13,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:13,045 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:13,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states.
[2022-02-09 02:18:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 1531.
[2022-02-09 02:18:13,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.9562091503267975) internal successors, (6053), 1530 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6053 transitions.
[2022-02-09 02:18:13,084 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6053 transitions. Word has length 25
[2022-02-09 02:18:13,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:13,084 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6053 transitions.
[2022-02-09 02:18:13,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6053 transitions.
[2022-02-09 02:18:13,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:13,087 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:13,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:13,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119
[2022-02-09 02:18:13,087 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:13,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1671283085, now seen corresponding path program 116 times
[2022-02-09 02:18:13,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:13,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85332758]
[2022-02-09 02:18:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:13,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:13,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:13,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:13,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85332758]
[2022-02-09 02:18:13,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85332758] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:13,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:13,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:13,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453829053]
[2022-02-09 02:18:13,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:13,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:13,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:13,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:13,221 INFO L87 Difference]: Start difference. First operand 1531 states and 6053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:13,348 INFO L93 Difference]: Finished difference Result 3288 states and 12223 transitions.
[2022-02-09 02:18:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:13,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:13,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:13,356 INFO L225 Difference]: With dead ends: 3288
[2022-02-09 02:18:13,356 INFO L226 Difference]: Without dead ends: 3077
[2022-02-09 02:18:13,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:13,356 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:13,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 148 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states.
[2022-02-09 02:18:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1503.
[2022-02-09 02:18:13,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.9620505992010653) internal successors, (5951), 1502 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5951 transitions.
[2022-02-09 02:18:13,388 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5951 transitions. Word has length 25
[2022-02-09 02:18:13,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:13,388 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5951 transitions.
[2022-02-09 02:18:13,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5951 transitions.
[2022-02-09 02:18:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:13,390 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:13,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:13,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120
[2022-02-09 02:18:13,390 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:13,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash 232040563, now seen corresponding path program 117 times
[2022-02-09 02:18:13,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:13,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431162192]
[2022-02-09 02:18:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:13,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:13,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:13,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431162192]
[2022-02-09 02:18:13,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431162192] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:13,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:13,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:13,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782368293]
[2022-02-09 02:18:13,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:13,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:13,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:13,516 INFO L87 Difference]: Start difference. First operand 1503 states and 5951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:13,632 INFO L93 Difference]: Finished difference Result 3349 states and 12451 transitions.
[2022-02-09 02:18:13,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:13,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:13,640 INFO L225 Difference]: With dead ends: 3349
[2022-02-09 02:18:13,640 INFO L226 Difference]: Without dead ends: 3162
[2022-02-09 02:18:13,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:13,640 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:13,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 139 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states.
[2022-02-09 02:18:13,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1549.
[2022-02-09 02:18:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1548 states have (on average 3.945736434108527) internal successors, (6108), 1548 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 6108 transitions.
[2022-02-09 02:18:13,671 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 6108 transitions. Word has length 25
[2022-02-09 02:18:13,671 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:13,671 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 6108 transitions.
[2022-02-09 02:18:13,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 6108 transitions.
[2022-02-09 02:18:13,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:13,673 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:13,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:13,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121
[2022-02-09 02:18:13,674 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:13,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1555341197, now seen corresponding path program 118 times
[2022-02-09 02:18:13,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:13,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072032525]
[2022-02-09 02:18:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:13,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:13,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:13,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072032525]
[2022-02-09 02:18:13,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072032525] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:13,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:13,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:13,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94223117]
[2022-02-09 02:18:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:13,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:13,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:13,798 INFO L87 Difference]: Start difference. First operand 1549 states and 6108 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:13,909 INFO L93 Difference]: Finished difference Result 3384 states and 12540 transitions.
[2022-02-09 02:18:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:13,916 INFO L225 Difference]: With dead ends: 3384
[2022-02-09 02:18:13,916 INFO L226 Difference]: Without dead ends: 3116
[2022-02-09 02:18:13,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:13,916 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:13,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 146 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states.
[2022-02-09 02:18:13,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 1503.
[2022-02-09 02:18:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.947403462050599) internal successors, (5929), 1502 states have internal predecessors, (5929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5929 transitions.
[2022-02-09 02:18:13,944 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5929 transitions. Word has length 25
[2022-02-09 02:18:13,944 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:13,944 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5929 transitions.
[2022-02-09 02:18:13,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5929 transitions.
[2022-02-09 02:18:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:13,946 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:13,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:13,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122
[2022-02-09 02:18:13,947 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash 620045525, now seen corresponding path program 119 times
[2022-02-09 02:18:13,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:13,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693614110]
[2022-02-09 02:18:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:13,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:14,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:14,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693614110]
[2022-02-09 02:18:14,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693614110] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:14,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:14,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:14,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203706985]
[2022-02-09 02:18:14,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:14,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:14,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:14,069 INFO L87 Difference]: Start difference. First operand 1503 states and 5929 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:14,185 INFO L93 Difference]: Finished difference Result 3339 states and 12398 transitions.
[2022-02-09 02:18:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:14,192 INFO L225 Difference]: With dead ends: 3339
[2022-02-09 02:18:14,192 INFO L226 Difference]: Without dead ends: 3156
[2022-02-09 02:18:14,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:14,193 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:14,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 142 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states.
[2022-02-09 02:18:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 1547.
[2022-02-09 02:18:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1546 states have (on average 3.9333764553686934) internal successors, (6081), 1546 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 6081 transitions.
[2022-02-09 02:18:14,221 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 6081 transitions. Word has length 25
[2022-02-09 02:18:14,221 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:14,221 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 6081 transitions.
[2022-02-09 02:18:14,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 6081 transitions.
[2022-02-09 02:18:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:14,224 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:14,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:14,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123
[2022-02-09 02:18:14,224 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1824694707, now seen corresponding path program 120 times
[2022-02-09 02:18:14,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:14,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001740973]
[2022-02-09 02:18:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:14,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:14,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:14,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001740973]
[2022-02-09 02:18:14,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001740973] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:14,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:14,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:14,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356415684]
[2022-02-09 02:18:14,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:14,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:14,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:14,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:14,352 INFO L87 Difference]: Start difference. First operand 1547 states and 6081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:14,494 INFO L93 Difference]: Finished difference Result 3378 states and 12501 transitions.
[2022-02-09 02:18:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:14,505 INFO L225 Difference]: With dead ends: 3378
[2022-02-09 02:18:14,505 INFO L226 Difference]: Without dead ends: 3057
[2022-02-09 02:18:14,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:14,505 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:14,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 178 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states.
[2022-02-09 02:18:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 1448.
[2022-02-09 02:18:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9979267449896336) internal successors, (5785), 1447 states have internal predecessors, (5785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5785 transitions.
[2022-02-09 02:18:14,537 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5785 transitions. Word has length 25
[2022-02-09 02:18:14,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:14,537 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5785 transitions.
[2022-02-09 02:18:14,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5785 transitions.
[2022-02-09 02:18:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:14,539 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:14,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:14,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124
[2022-02-09 02:18:14,540 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:14,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash -863357259, now seen corresponding path program 121 times
[2022-02-09 02:18:14,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:14,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365245683]
[2022-02-09 02:18:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:14,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:14,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:14,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365245683]
[2022-02-09 02:18:14,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365245683] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:14,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:14,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:14,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000230007]
[2022-02-09 02:18:14,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:14,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:14,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:14,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:14,670 INFO L87 Difference]: Start difference. First operand 1448 states and 5785 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:14,775 INFO L93 Difference]: Finished difference Result 3141 states and 11643 transitions.
[2022-02-09 02:18:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:14,782 INFO L225 Difference]: With dead ends: 3141
[2022-02-09 02:18:14,782 INFO L226 Difference]: Without dead ends: 2982
[2022-02-09 02:18:14,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:14,782 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:14,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 141 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states.
[2022-02-09 02:18:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1504.
[2022-02-09 02:18:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9900199600798403) internal successors, (5997), 1503 states have internal predecessors, (5997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5997 transitions.
[2022-02-09 02:18:14,811 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5997 transitions. Word has length 25
[2022-02-09 02:18:14,811 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:14,811 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5997 transitions.
[2022-02-09 02:18:14,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5997 transitions.
[2022-02-09 02:18:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:14,814 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:14,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:14,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125
[2022-02-09 02:18:14,814 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:14,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1871655243, now seen corresponding path program 122 times
[2022-02-09 02:18:14,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:14,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086118221]
[2022-02-09 02:18:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:14,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:14,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:14,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086118221]
[2022-02-09 02:18:14,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086118221] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:14,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:14,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:14,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491440327]
[2022-02-09 02:18:14,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:14,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:14,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:14,939 INFO L87 Difference]: Start difference. First operand 1504 states and 5997 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:15,052 INFO L93 Difference]: Finished difference Result 3204 states and 11850 transitions.
[2022-02-09 02:18:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:15,060 INFO L225 Difference]: With dead ends: 3204
[2022-02-09 02:18:15,060 INFO L226 Difference]: Without dead ends: 2950
[2022-02-09 02:18:15,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:15,060 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:15,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 161 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states.
[2022-02-09 02:18:15,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1472.
[2022-02-09 02:18:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.989802855200544) internal successors, (5869), 1471 states have internal predecessors, (5869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5869 transitions.
[2022-02-09 02:18:15,091 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5869 transitions. Word has length 25
[2022-02-09 02:18:15,091 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:15,091 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5869 transitions.
[2022-02-09 02:18:15,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5869 transitions.
[2022-02-09 02:18:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:15,093 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:15,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:15,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126
[2022-02-09 02:18:15,094 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:15,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash -824742575, now seen corresponding path program 123 times
[2022-02-09 02:18:15,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:15,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176673022]
[2022-02-09 02:18:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:15,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:15,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:15,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176673022]
[2022-02-09 02:18:15,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176673022] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:15,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:15,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:15,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459835941]
[2022-02-09 02:18:15,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:15,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:15,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:15,223 INFO L87 Difference]: Start difference. First operand 1472 states and 5869 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:15,340 INFO L93 Difference]: Finished difference Result 3092 states and 11449 transitions.
[2022-02-09 02:18:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:15,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:15,347 INFO L225 Difference]: With dead ends: 3092
[2022-02-09 02:18:15,347 INFO L226 Difference]: Without dead ends: 2933
[2022-02-09 02:18:15,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:15,347 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 115 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:15,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states.
[2022-02-09 02:18:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1488.
[2022-02-09 02:18:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9791526563550774) internal successors, (5917), 1487 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5917 transitions.
[2022-02-09 02:18:15,375 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5917 transitions. Word has length 25
[2022-02-09 02:18:15,375 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:15,375 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5917 transitions.
[2022-02-09 02:18:15,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5917 transitions.
[2022-02-09 02:18:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:15,378 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:15,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:15,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127
[2022-02-09 02:18:15,378 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:15,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1880289971, now seen corresponding path program 124 times
[2022-02-09 02:18:15,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:15,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5036292]
[2022-02-09 02:18:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:15,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:15,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:15,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5036292]
[2022-02-09 02:18:15,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5036292] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:15,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:15,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:15,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045559243]
[2022-02-09 02:18:15,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:15,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:15,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:15,502 INFO L87 Difference]: Start difference. First operand 1488 states and 5917 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:15,644 INFO L93 Difference]: Finished difference Result 3122 states and 11542 transitions.
[2022-02-09 02:18:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:15,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:15,651 INFO L225 Difference]: With dead ends: 3122
[2022-02-09 02:18:15,651 INFO L226 Difference]: Without dead ends: 2917
[2022-02-09 02:18:15,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:15,652 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 93 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:15,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 180 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states.
[2022-02-09 02:18:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1472.
[2022-02-09 02:18:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9843643779741673) internal successors, (5861), 1471 states have internal predecessors, (5861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5861 transitions.
[2022-02-09 02:18:15,681 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5861 transitions. Word has length 25
[2022-02-09 02:18:15,682 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:15,682 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5861 transitions.
[2022-02-09 02:18:15,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5861 transitions.
[2022-02-09 02:18:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:15,684 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:15,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:15,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128
[2022-02-09 02:18:15,684 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:15,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1242126485, now seen corresponding path program 125 times
[2022-02-09 02:18:15,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:15,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266868704]
[2022-02-09 02:18:15,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:15,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:15,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:15,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266868704]
[2022-02-09 02:18:15,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266868704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:15,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:15,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:15,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772583654]
[2022-02-09 02:18:15,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:15,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:15,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:15,810 INFO L87 Difference]: Start difference. First operand 1472 states and 5861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:15,935 INFO L93 Difference]: Finished difference Result 3232 states and 11947 transitions.
[2022-02-09 02:18:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:15,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:15,943 INFO L225 Difference]: With dead ends: 3232
[2022-02-09 02:18:15,943 INFO L226 Difference]: Without dead ends: 3043
[2022-02-09 02:18:15,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:15,943 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:15,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 152 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:15,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states.
[2022-02-09 02:18:15,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 1535.
[2022-02-09 02:18:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.955671447196871) internal successors, (6068), 1534 states have internal predecessors, (6068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6068 transitions.
[2022-02-09 02:18:15,975 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6068 transitions. Word has length 25
[2022-02-09 02:18:15,975 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:15,975 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6068 transitions.
[2022-02-09 02:18:15,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6068 transitions.
[2022-02-09 02:18:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:15,977 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:15,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:15,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129
[2022-02-09 02:18:15,977 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:15,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:15,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1540179443, now seen corresponding path program 126 times
[2022-02-09 02:18:15,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:15,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790923117]
[2022-02-09 02:18:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:15,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:16,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:16,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790923117]
[2022-02-09 02:18:16,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790923117] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:16,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:16,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:16,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042622300]
[2022-02-09 02:18:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:16,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:16,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:16,103 INFO L87 Difference]: Start difference. First operand 1535 states and 6068 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:16,217 INFO L93 Difference]: Finished difference Result 3265 states and 12030 transitions.
[2022-02-09 02:18:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:16,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:16,225 INFO L225 Difference]: With dead ends: 3265
[2022-02-09 02:18:16,225 INFO L226 Difference]: Without dead ends: 2956
[2022-02-09 02:18:16,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:16,225 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:16,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 151 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states.
[2022-02-09 02:18:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1448.
[2022-02-09 02:18:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9896337249481686) internal successors, (5773), 1447 states have internal predecessors, (5773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5773 transitions.
[2022-02-09 02:18:16,256 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5773 transitions. Word has length 25
[2022-02-09 02:18:16,256 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:16,256 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5773 transitions.
[2022-02-09 02:18:16,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5773 transitions.
[2022-02-09 02:18:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:16,258 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:16,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:16,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130
[2022-02-09 02:18:16,259 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 804518581, now seen corresponding path program 127 times
[2022-02-09 02:18:16,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:16,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027603236]
[2022-02-09 02:18:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:16,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:16,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:16,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027603236]
[2022-02-09 02:18:16,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027603236] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:16,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:16,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:16,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121880170]
[2022-02-09 02:18:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:16,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:16,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:16,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:16,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:16,392 INFO L87 Difference]: Start difference. First operand 1448 states and 5773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:16,516 INFO L93 Difference]: Finished difference Result 3114 states and 11547 transitions.
[2022-02-09 02:18:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:16,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:16,524 INFO L225 Difference]: With dead ends: 3114
[2022-02-09 02:18:16,524 INFO L226 Difference]: Without dead ends: 2955
[2022-02-09 02:18:16,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:16,525 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:16,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 172 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states.
[2022-02-09 02:18:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1496.
[2022-02-09 02:18:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.9846153846153847) internal successors, (5957), 1495 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5957 transitions.
[2022-02-09 02:18:16,575 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5957 transitions. Word has length 25
[2022-02-09 02:18:16,576 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:16,576 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5957 transitions.
[2022-02-09 02:18:16,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5957 transitions.
[2022-02-09 02:18:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:16,578 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:16,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:16,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131
[2022-02-09 02:18:16,578 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:16,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash -203779403, now seen corresponding path program 128 times
[2022-02-09 02:18:16,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:16,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423965145]
[2022-02-09 02:18:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:16,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:16,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:16,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423965145]
[2022-02-09 02:18:16,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423965145] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:16,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:16,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:16,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977050066]
[2022-02-09 02:18:16,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:16,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:16,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:16,722 INFO L87 Difference]: Start difference. First operand 1496 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:16,834 INFO L93 Difference]: Finished difference Result 3177 states and 11754 transitions.
[2022-02-09 02:18:16,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:16,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:16,841 INFO L225 Difference]: With dead ends: 3177
[2022-02-09 02:18:16,842 INFO L226 Difference]: Without dead ends: 2923
[2022-02-09 02:18:16,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:16,842 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:16,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 156 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:16,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states.
[2022-02-09 02:18:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1464.
[2022-02-09 02:18:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9842788790157213) internal successors, (5829), 1463 states have internal predecessors, (5829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5829 transitions.
[2022-02-09 02:18:16,874 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5829 transitions. Word has length 25
[2022-02-09 02:18:16,875 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:16,875 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5829 transitions.
[2022-02-09 02:18:16,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:16,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5829 transitions.
[2022-02-09 02:18:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:16,877 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:16,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:16,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132
[2022-02-09 02:18:16,878 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:16,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1793552087, now seen corresponding path program 129 times
[2022-02-09 02:18:16,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:16,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85579232]
[2022-02-09 02:18:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:16,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:17,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:17,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85579232]
[2022-02-09 02:18:17,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85579232] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:17,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:17,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:17,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61445071]
[2022-02-09 02:18:17,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:17,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:17,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:17,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:17,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:17,002 INFO L87 Difference]: Start difference. First operand 1464 states and 5829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:17,108 INFO L93 Difference]: Finished difference Result 3063 states and 11348 transitions.
[2022-02-09 02:18:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:17,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:17,114 INFO L225 Difference]: With dead ends: 3063
[2022-02-09 02:18:17,114 INFO L226 Difference]: Without dead ends: 2904
[2022-02-09 02:18:17,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:17,115 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:17,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:17,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states.
[2022-02-09 02:18:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1480.
[2022-02-09 02:18:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 3.973630831643002) internal successors, (5877), 1479 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5877 transitions.
[2022-02-09 02:18:17,143 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5877 transitions. Word has length 25
[2022-02-09 02:18:17,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:17,143 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5877 transitions.
[2022-02-09 02:18:17,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5877 transitions.
[2022-02-09 02:18:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:17,146 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:17,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:17,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133
[2022-02-09 02:18:17,146 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1493117225, now seen corresponding path program 130 times
[2022-02-09 02:18:17,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:17,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109160302]
[2022-02-09 02:18:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:17,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:17,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:17,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109160302]
[2022-02-09 02:18:17,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109160302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:17,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:17,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:17,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382517812]
[2022-02-09 02:18:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:17,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:17,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:17,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:17,286 INFO L87 Difference]: Start difference. First operand 1480 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:17,412 INFO L93 Difference]: Finished difference Result 3091 states and 11436 transitions.
[2022-02-09 02:18:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:17,420 INFO L225 Difference]: With dead ends: 3091
[2022-02-09 02:18:17,420 INFO L226 Difference]: Without dead ends: 2888
[2022-02-09 02:18:17,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:17,420 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:17,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states.
[2022-02-09 02:18:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1464.
[2022-02-09 02:18:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9788106630211892) internal successors, (5821), 1463 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5821 transitions.
[2022-02-09 02:18:17,447 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5821 transitions. Word has length 25
[2022-02-09 02:18:17,447 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:17,448 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5821 transitions.
[2022-02-09 02:18:17,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5821 transitions.
[2022-02-09 02:18:17,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:17,450 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:17,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:17,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134
[2022-02-09 02:18:17,450 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash 195129047, now seen corresponding path program 131 times
[2022-02-09 02:18:17,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:17,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765380930]
[2022-02-09 02:18:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:17,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:17,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:17,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765380930]
[2022-02-09 02:18:17,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765380930] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:17,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:17,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:17,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704039878]
[2022-02-09 02:18:17,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:17,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:17,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:17,579 INFO L87 Difference]: Start difference. First operand 1464 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:17,695 INFO L93 Difference]: Finished difference Result 3184 states and 11790 transitions.
[2022-02-09 02:18:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:17,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:17,704 INFO L225 Difference]: With dead ends: 3184
[2022-02-09 02:18:17,704 INFO L226 Difference]: Without dead ends: 2997
[2022-02-09 02:18:17,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:17,704 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 119 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:17,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 137 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states.
[2022-02-09 02:18:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1510.
[2022-02-09 02:18:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.9615639496355204) internal successors, (5978), 1509 states have internal predecessors, (5978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5978 transitions.
[2022-02-09 02:18:17,736 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5978 transitions. Word has length 25
[2022-02-09 02:18:17,736 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:17,737 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5978 transitions.
[2022-02-09 02:18:17,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5978 transitions.
[2022-02-09 02:18:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:17,739 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:17,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:17,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135
[2022-02-09 02:18:17,739 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash -158010443, now seen corresponding path program 132 times
[2022-02-09 02:18:17,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:17,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042587493]
[2022-02-09 02:18:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:17,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:17,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:17,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042587493]
[2022-02-09 02:18:17,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042587493] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:17,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:17,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:17,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998403807]
[2022-02-09 02:18:17,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:17,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:17,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:17,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:17,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:17,891 INFO L87 Difference]: Start difference. First operand 1510 states and 5978 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:17,998 INFO L93 Difference]: Finished difference Result 3219 states and 11879 transitions.
[2022-02-09 02:18:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:17,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:17,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:18,006 INFO L225 Difference]: With dead ends: 3219
[2022-02-09 02:18:18,006 INFO L226 Difference]: Without dead ends: 2935
[2022-02-09 02:18:18,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:18,006 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:18,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 144 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states.
[2022-02-09 02:18:18,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1448.
[2022-02-09 02:18:18,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.984105044920525) internal successors, (5765), 1447 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5765 transitions.
[2022-02-09 02:18:18,038 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5765 transitions. Word has length 25
[2022-02-09 02:18:18,038 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:18,038 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5765 transitions.
[2022-02-09 02:18:18,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5765 transitions.
[2022-02-09 02:18:18,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:18,041 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:18,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:18,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136
[2022-02-09 02:18:18,041 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:18,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:18,041 INFO L85 PathProgramCache]: Analyzing trace with hash -833504879, now seen corresponding path program 133 times
[2022-02-09 02:18:18,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:18,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209365516]
[2022-02-09 02:18:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:18,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:18,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:18,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209365516]
[2022-02-09 02:18:18,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209365516] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:18,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:18,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:18,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252758743]
[2022-02-09 02:18:18,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:18,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:18,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:18,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:18,169 INFO L87 Difference]: Start difference. First operand 1448 states and 5765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:18,270 INFO L93 Difference]: Finished difference Result 2992 states and 11083 transitions.
[2022-02-09 02:18:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:18,277 INFO L225 Difference]: With dead ends: 2992
[2022-02-09 02:18:18,277 INFO L226 Difference]: Without dead ends: 2833
[2022-02-09 02:18:18,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:18,277 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 128 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:18,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 132 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states.
[2022-02-09 02:18:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 1472.
[2022-02-09 02:18:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.976206662134602) internal successors, (5849), 1471 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions.
[2022-02-09 02:18:18,310 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25
[2022-02-09 02:18:18,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:18,311 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions.
[2022-02-09 02:18:18,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions.
[2022-02-09 02:18:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:18,313 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:18,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:18,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137
[2022-02-09 02:18:18,313 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:18,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1871527667, now seen corresponding path program 134 times
[2022-02-09 02:18:18,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:18,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082385700]
[2022-02-09 02:18:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:18,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:18,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:18,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082385700]
[2022-02-09 02:18:18,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082385700] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:18,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:18,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:18,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492908635]
[2022-02-09 02:18:18,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:18,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:18,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:18,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:18,437 INFO L87 Difference]: Start difference. First operand 1472 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:18,558 INFO L93 Difference]: Finished difference Result 3022 states and 11176 transitions.
[2022-02-09 02:18:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:18,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:18,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:18,565 INFO L225 Difference]: With dead ends: 3022
[2022-02-09 02:18:18,565 INFO L226 Difference]: Without dead ends: 2817
[2022-02-09 02:18:18,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:18,565 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:18,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 162 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:18,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states.
[2022-02-09 02:18:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 1456.
[2022-02-09 02:18:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9814432989690722) internal successors, (5793), 1455 states have internal predecessors, (5793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5793 transitions.
[2022-02-09 02:18:18,596 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5793 transitions. Word has length 25
[2022-02-09 02:18:18,596 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:18,596 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5793 transitions.
[2022-02-09 02:18:18,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5793 transitions.
[2022-02-09 02:18:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:18,598 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:18,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:18,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138
[2022-02-09 02:18:18,598 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:18,599 INFO L85 PathProgramCache]: Analyzing trace with hash 247557747, now seen corresponding path program 135 times
[2022-02-09 02:18:18,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:18,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120144504]
[2022-02-09 02:18:18,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:18,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:18,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:18,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120144504]
[2022-02-09 02:18:18,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120144504] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:18,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:18,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:18,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819489440]
[2022-02-09 02:18:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:18,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:18,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:18,733 INFO L87 Difference]: Start difference. First operand 1456 states and 5793 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:18,861 INFO L93 Difference]: Finished difference Result 2990 states and 11070 transitions.
[2022-02-09 02:18:18,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:18,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:18,883 INFO L225 Difference]: With dead ends: 2990
[2022-02-09 02:18:18,883 INFO L226 Difference]: Without dead ends: 2831
[2022-02-09 02:18:18,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:18,884 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:18,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 185 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states.
[2022-02-09 02:18:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1472.
[2022-02-09 02:18:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9707681849082257) internal successors, (5841), 1471 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5841 transitions.
[2022-02-09 02:18:18,913 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5841 transitions. Word has length 25
[2022-02-09 02:18:18,913 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:18,913 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5841 transitions.
[2022-02-09 02:18:18,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5841 transitions.
[2022-02-09 02:18:18,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:18,916 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:18,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:18,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139
[2022-02-09 02:18:18,916 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1255855731, now seen corresponding path program 136 times
[2022-02-09 02:18:18,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:18,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361269358]
[2022-02-09 02:18:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:18,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:19,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:19,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361269358]
[2022-02-09 02:18:19,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361269358] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:19,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:19,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:19,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533280916]
[2022-02-09 02:18:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:19,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:19,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:19,041 INFO L87 Difference]: Start difference. First operand 1472 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:19,158 INFO L93 Difference]: Finished difference Result 3018 states and 11158 transitions.
[2022-02-09 02:18:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:19,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:19,165 INFO L225 Difference]: With dead ends: 3018
[2022-02-09 02:18:19,165 INFO L226 Difference]: Without dead ends: 2815
[2022-02-09 02:18:19,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:19,165 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:19,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 147 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states.
[2022-02-09 02:18:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 1456.
[2022-02-09 02:18:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9759450171821307) internal successors, (5785), 1455 states have internal predecessors, (5785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5785 transitions.
[2022-02-09 02:18:19,196 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5785 transitions. Word has length 25
[2022-02-09 02:18:19,196 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:19,196 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5785 transitions.
[2022-02-09 02:18:19,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5785 transitions.
[2022-02-09 02:18:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:19,199 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:19,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:19,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140
[2022-02-09 02:18:19,199 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1664719701, now seen corresponding path program 137 times
[2022-02-09 02:18:19,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:19,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938600483]
[2022-02-09 02:18:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:19,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:19,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:19,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938600483]
[2022-02-09 02:18:19,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938600483] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:19,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:19,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:19,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723447960]
[2022-02-09 02:18:19,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:19,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:19,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:19,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:19,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:19,341 INFO L87 Difference]: Start difference. First operand 1456 states and 5785 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:19,457 INFO L93 Difference]: Finished difference Result 3064 states and 11339 transitions.
[2022-02-09 02:18:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:19,464 INFO L225 Difference]: With dead ends: 3064
[2022-02-09 02:18:19,464 INFO L226 Difference]: Without dead ends: 2875
[2022-02-09 02:18:19,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:19,465 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:19,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states.
[2022-02-09 02:18:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1486.
[2022-02-09 02:18:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.958249158249158) internal successors, (5878), 1485 states have internal predecessors, (5878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5878 transitions.
[2022-02-09 02:18:19,494 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5878 transitions. Word has length 25
[2022-02-09 02:18:19,494 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:19,494 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5878 transitions.
[2022-02-09 02:18:19,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5878 transitions.
[2022-02-09 02:18:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:19,497 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:19,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:19,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141
[2022-02-09 02:18:19,497 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:19,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -378617293, now seen corresponding path program 138 times
[2022-02-09 02:18:19,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:19,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656874129]
[2022-02-09 02:18:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:19,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:19,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:19,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656874129]
[2022-02-09 02:18:19,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656874129] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:19,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:19,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:19,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364625898]
[2022-02-09 02:18:19,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:19,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:19,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:19,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:19,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:19,628 INFO L87 Difference]: Start difference. First operand 1486 states and 5878 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:19,752 INFO L93 Difference]: Finished difference Result 3062 states and 11304 transitions.
[2022-02-09 02:18:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:19,753 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:19,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:19,759 INFO L225 Difference]: With dead ends: 3062
[2022-02-09 02:18:19,759 INFO L226 Difference]: Without dead ends: 2837
[2022-02-09 02:18:19,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:19,759 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:19,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states.
[2022-02-09 02:18:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1448.
[2022-02-09 02:18:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9813407049067036) internal successors, (5761), 1447 states have internal predecessors, (5761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5761 transitions.
[2022-02-09 02:18:19,785 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5761 transitions. Word has length 25
[2022-02-09 02:18:19,785 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:19,785 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5761 transitions.
[2022-02-09 02:18:19,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:19,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5761 transitions.
[2022-02-09 02:18:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:19,788 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:19,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:19,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142
[2022-02-09 02:18:19,788 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:19,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1725034313, now seen corresponding path program 139 times
[2022-02-09 02:18:19,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:19,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432914399]
[2022-02-09 02:18:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:19,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:19,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:19,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432914399]
[2022-02-09 02:18:19,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432914399] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:19,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:19,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:19,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772858560]
[2022-02-09 02:18:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:19,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:19,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:19,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:19,912 INFO L87 Difference]: Start difference. First operand 1448 states and 5761 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:20,040 INFO L93 Difference]: Finished difference Result 3235 states and 11988 transitions.
[2022-02-09 02:18:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:20,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:20,047 INFO L225 Difference]: With dead ends: 3235
[2022-02-09 02:18:20,047 INFO L226 Difference]: Without dead ends: 3046
[2022-02-09 02:18:20,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:20,048 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:20,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 158 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states.
[2022-02-09 02:18:20,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 1517.
[2022-02-09 02:18:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.962401055408971) internal successors, (6007), 1516 states have internal predecessors, (6007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 6007 transitions.
[2022-02-09 02:18:20,075 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 6007 transitions. Word has length 25
[2022-02-09 02:18:20,075 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:20,075 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 6007 transitions.
[2022-02-09 02:18:20,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 6007 transitions.
[2022-02-09 02:18:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:20,077 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:20,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:20,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143
[2022-02-09 02:18:20,078 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:20,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:20,078 INFO L85 PathProgramCache]: Analyzing trace with hash 526595989, now seen corresponding path program 140 times
[2022-02-09 02:18:20,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:20,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078483976]
[2022-02-09 02:18:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:20,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:20,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:20,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078483976]
[2022-02-09 02:18:20,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078483976] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:20,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:20,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:20,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605935832]
[2022-02-09 02:18:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:20,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:20,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:20,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:20,199 INFO L87 Difference]: Start difference. First operand 1517 states and 6007 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:20,322 INFO L93 Difference]: Finished difference Result 3233 states and 11953 transitions.
[2022-02-09 02:18:20,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:20,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:20,332 INFO L225 Difference]: With dead ends: 3233
[2022-02-09 02:18:20,332 INFO L226 Difference]: Without dead ends: 3016
[2022-02-09 02:18:20,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:20,333 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 124 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:20,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 145 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states.
[2022-02-09 02:18:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1487.
[2022-02-09 02:18:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 3.9697173620457606) internal successors, (5899), 1486 states have internal predecessors, (5899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5899 transitions.
[2022-02-09 02:18:20,368 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5899 transitions. Word has length 25
[2022-02-09 02:18:20,368 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:20,368 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5899 transitions.
[2022-02-09 02:18:20,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5899 transitions.
[2022-02-09 02:18:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:20,371 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:20,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:20,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144
[2022-02-09 02:18:20,371 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1789667819, now seen corresponding path program 141 times
[2022-02-09 02:18:20,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:20,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561286991]
[2022-02-09 02:18:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:20,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:20,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:20,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561286991]
[2022-02-09 02:18:20,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561286991] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:20,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:20,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:20,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080140436]
[2022-02-09 02:18:20,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:20,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:20,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:20,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:20,499 INFO L87 Difference]: Start difference. First operand 1487 states and 5899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:20,634 INFO L93 Difference]: Finished difference Result 3303 states and 12207 transitions.
[2022-02-09 02:18:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:20,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:20,642 INFO L225 Difference]: With dead ends: 3303
[2022-02-09 02:18:20,642 INFO L226 Difference]: Without dead ends: 3114
[2022-02-09 02:18:20,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:20,642 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:20,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 160 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:20,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states.
[2022-02-09 02:18:20,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 1550.
[2022-02-09 02:18:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.9418979987088445) internal successors, (6106), 1549 states have internal predecessors, (6106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6106 transitions.
[2022-02-09 02:18:20,674 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6106 transitions. Word has length 25
[2022-02-09 02:18:20,674 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:20,674 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6106 transitions.
[2022-02-09 02:18:20,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6106 transitions.
[2022-02-09 02:18:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:20,677 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:20,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:20,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145
[2022-02-09 02:18:20,677 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1949511189, now seen corresponding path program 142 times
[2022-02-09 02:18:20,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:20,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973098468]
[2022-02-09 02:18:20,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:20,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:20,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:20,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973098468]
[2022-02-09 02:18:20,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973098468] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:20,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:20,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:20,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412956728]
[2022-02-09 02:18:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:20,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:20,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:20,804 INFO L87 Difference]: Start difference. First operand 1550 states and 6106 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:20,930 INFO L93 Difference]: Finished difference Result 3336 states and 12290 transitions.
[2022-02-09 02:18:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:20,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:20,937 INFO L225 Difference]: With dead ends: 3336
[2022-02-09 02:18:20,938 INFO L226 Difference]: Without dead ends: 3051
[2022-02-09 02:18:20,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:20,938 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 103 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:20,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:20,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states.
[2022-02-09 02:18:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 1487.
[2022-02-09 02:18:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 3.9488559892328396) internal successors, (5868), 1486 states have internal predecessors, (5868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5868 transitions.
[2022-02-09 02:18:20,966 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5868 transitions. Word has length 25
[2022-02-09 02:18:20,966 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:20,966 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5868 transitions.
[2022-02-09 02:18:20,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5868 transitions.
[2022-02-09 02:18:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:20,968 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:20,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:20,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146
[2022-02-09 02:18:20,969 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:20,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:20,969 INFO L85 PathProgramCache]: Analyzing trace with hash -807320205, now seen corresponding path program 143 times
[2022-02-09 02:18:20,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:20,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125317221]
[2022-02-09 02:18:20,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:20,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:21,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:21,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125317221]
[2022-02-09 02:18:21,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125317221] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:21,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:21,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:21,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528877188]
[2022-02-09 02:18:21,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:21,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:21,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:21,103 INFO L87 Difference]: Start difference. First operand 1487 states and 5868 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:21,222 INFO L93 Difference]: Finished difference Result 3282 states and 12115 transitions.
[2022-02-09 02:18:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:21,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:21,229 INFO L225 Difference]: With dead ends: 3282
[2022-02-09 02:18:21,229 INFO L226 Difference]: Without dead ends: 3095
[2022-02-09 02:18:21,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:21,229 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:21,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 151 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states.
[2022-02-09 02:18:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1533.
[2022-02-09 02:18:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 3.9327676240208875) internal successors, (6025), 1532 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 6025 transitions.
[2022-02-09 02:18:21,258 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 6025 transitions. Word has length 25
[2022-02-09 02:18:21,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:21,258 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 6025 transitions.
[2022-02-09 02:18:21,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 6025 transitions.
[2022-02-09 02:18:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:21,261 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:21,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:21,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147
[2022-02-09 02:18:21,261 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:21,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1130257493, now seen corresponding path program 144 times
[2022-02-09 02:18:21,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:21,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826486413]
[2022-02-09 02:18:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:21,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:21,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:21,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:21,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826486413]
[2022-02-09 02:18:21,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826486413] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:21,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:21,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:21,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034344709]
[2022-02-09 02:18:21,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:21,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:21,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:21,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:21,384 INFO L87 Difference]: Start difference. First operand 1533 states and 6025 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:21,499 INFO L93 Difference]: Finished difference Result 3317 states and 12204 transitions.
[2022-02-09 02:18:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:21,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:21,507 INFO L225 Difference]: With dead ends: 3317
[2022-02-09 02:18:21,507 INFO L226 Difference]: Without dead ends: 2994
[2022-02-09 02:18:21,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:21,508 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:21,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 154 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states.
[2022-02-09 02:18:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1432.
[2022-02-09 02:18:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.989517819706499) internal successors, (5709), 1431 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5709 transitions.
[2022-02-09 02:18:21,542 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5709 transitions. Word has length 25
[2022-02-09 02:18:21,542 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:21,542 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5709 transitions.
[2022-02-09 02:18:21,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5709 transitions.
[2022-02-09 02:18:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:21,544 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:21,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148
[2022-02-09 02:18:21,545 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2138101417, now seen corresponding path program 145 times
[2022-02-09 02:18:21,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:21,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797422660]
[2022-02-09 02:18:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:21,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:21,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:21,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797422660]
[2022-02-09 02:18:21,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797422660] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:21,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:21,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:21,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909612111]
[2022-02-09 02:18:21,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:21,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:21,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:21,667 INFO L87 Difference]: Start difference. First operand 1432 states and 5709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:21,775 INFO L93 Difference]: Finished difference Result 3078 states and 11404 transitions.
[2022-02-09 02:18:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:21,782 INFO L225 Difference]: With dead ends: 3078
[2022-02-09 02:18:21,782 INFO L226 Difference]: Without dead ends: 2919
[2022-02-09 02:18:21,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:21,782 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:21,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states.
[2022-02-09 02:18:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1500.
[2022-02-09 02:18:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.9873248832555035) internal successors, (5977), 1499 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5977 transitions.
[2022-02-09 02:18:21,810 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5977 transitions. Word has length 25
[2022-02-09 02:18:21,810 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:21,810 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5977 transitions.
[2022-02-09 02:18:21,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5977 transitions.
[2022-02-09 02:18:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:21,813 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:21,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:21,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149
[2022-02-09 02:18:21,813 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:21,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:21,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1148567895, now seen corresponding path program 146 times
[2022-02-09 02:18:21,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:21,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890755311]
[2022-02-09 02:18:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:21,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:21,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:21,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890755311]
[2022-02-09 02:18:21,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890755311] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:21,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:21,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:21,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285617552]
[2022-02-09 02:18:21,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:21,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:21,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:21,941 INFO L87 Difference]: Start difference. First operand 1500 states and 5977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:22,050 INFO L93 Difference]: Finished difference Result 3141 states and 11611 transitions.
[2022-02-09 02:18:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:22,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:22,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:22,060 INFO L225 Difference]: With dead ends: 3141
[2022-02-09 02:18:22,060 INFO L226 Difference]: Without dead ends: 2887
[2022-02-09 02:18:22,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:22,061 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:22,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 156 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states.
[2022-02-09 02:18:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1468.
[2022-02-09 02:18:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9870483980913427) internal successors, (5849), 1467 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5849 transitions.
[2022-02-09 02:18:22,102 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5849 transitions. Word has length 25
[2022-02-09 02:18:22,102 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:22,102 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5849 transitions.
[2022-02-09 02:18:22,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5849 transitions.
[2022-02-09 02:18:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:22,105 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:22,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:22,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150
[2022-02-09 02:18:22,105 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2099486733, now seen corresponding path program 147 times
[2022-02-09 02:18:22,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:22,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728820315]
[2022-02-09 02:18:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:22,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:22,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:22,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728820315]
[2022-02-09 02:18:22,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728820315] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:22,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:22,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:22,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648935273]
[2022-02-09 02:18:22,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:22,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:22,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:22,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:22,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:22,233 INFO L87 Difference]: Start difference. First operand 1468 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:22,338 INFO L93 Difference]: Finished difference Result 3029 states and 11210 transitions.
[2022-02-09 02:18:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:22,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:22,344 INFO L225 Difference]: With dead ends: 3029
[2022-02-09 02:18:22,344 INFO L226 Difference]: Without dead ends: 2870
[2022-02-09 02:18:22,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:22,345 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:22,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 146 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:22,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states.
[2022-02-09 02:18:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484.
[2022-02-09 02:18:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9763991908294) internal successors, (5897), 1483 states have internal predecessors, (5897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5897 transitions.
[2022-02-09 02:18:22,372 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5897 transitions. Word has length 25
[2022-02-09 02:18:22,373 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:22,373 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5897 transitions.
[2022-02-09 02:18:22,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5897 transitions.
[2022-02-09 02:18:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:22,375 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:22,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:22,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151
[2022-02-09 02:18:22,375 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:22,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash 605545813, now seen corresponding path program 148 times
[2022-02-09 02:18:22,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:22,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521936811]
[2022-02-09 02:18:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:22,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:22,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:22,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521936811]
[2022-02-09 02:18:22,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521936811] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:22,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:22,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:22,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669305049]
[2022-02-09 02:18:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:22,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:22,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:22,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:22,502 INFO L87 Difference]: Start difference. First operand 1484 states and 5897 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:22,626 INFO L93 Difference]: Finished difference Result 3059 states and 11303 transitions.
[2022-02-09 02:18:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:22,633 INFO L225 Difference]: With dead ends: 3059
[2022-02-09 02:18:22,634 INFO L226 Difference]: Without dead ends: 2854
[2022-02-09 02:18:22,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:22,634 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:22,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 152 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states.
[2022-02-09 02:18:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1468.
[2022-02-09 02:18:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.98159509202454) internal successors, (5841), 1467 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5841 transitions.
[2022-02-09 02:18:22,665 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5841 transitions. Word has length 25
[2022-02-09 02:18:22,665 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:22,665 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5841 transitions.
[2022-02-09 02:18:22,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5841 transitions.
[2022-02-09 02:18:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:22,668 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:22,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:22,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152
[2022-02-09 02:18:22,668 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash -32617673, now seen corresponding path program 149 times
[2022-02-09 02:18:22,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:22,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556582351]
[2022-02-09 02:18:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:22,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:22,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:22,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556582351]
[2022-02-09 02:18:22,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556582351] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:22,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:22,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:22,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706547669]
[2022-02-09 02:18:22,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:22,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:22,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:22,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:22,799 INFO L87 Difference]: Start difference. First operand 1468 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:22,933 INFO L93 Difference]: Finished difference Result 3169 states and 11708 transitions.
[2022-02-09 02:18:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:22,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:22,940 INFO L225 Difference]: With dead ends: 3169
[2022-02-09 02:18:22,940 INFO L226 Difference]: Without dead ends: 2980
[2022-02-09 02:18:22,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:22,941 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 94 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:22,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 176 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states.
[2022-02-09 02:18:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1531.
[2022-02-09 02:18:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.9529411764705884) internal successors, (6048), 1530 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6048 transitions.
[2022-02-09 02:18:22,970 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6048 transitions. Word has length 25
[2022-02-09 02:18:22,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:22,970 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6048 transitions.
[2022-02-09 02:18:22,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6048 transitions.
[2022-02-09 02:18:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:22,973 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:22,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:22,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153
[2022-02-09 02:18:22,973 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:22,973 INFO L85 PathProgramCache]: Analyzing trace with hash 265435285, now seen corresponding path program 150 times
[2022-02-09 02:18:22,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:22,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670066994]
[2022-02-09 02:18:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:22,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:23,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:23,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670066994]
[2022-02-09 02:18:23,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670066994] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:23,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:23,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:23,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120161805]
[2022-02-09 02:18:23,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:23,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:23,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:23,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:23,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:23,101 INFO L87 Difference]: Start difference. First operand 1531 states and 6048 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:23,231 INFO L93 Difference]: Finished difference Result 3202 states and 11791 transitions.
[2022-02-09 02:18:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:23,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:23,238 INFO L225 Difference]: With dead ends: 3202
[2022-02-09 02:18:23,239 INFO L226 Difference]: Without dead ends: 2893
[2022-02-09 02:18:23,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:23,239 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:23,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 184 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states.
[2022-02-09 02:18:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1444.
[2022-02-09 02:18:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.986832986832987) internal successors, (5753), 1443 states have internal predecessors, (5753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5753 transitions.
[2022-02-09 02:18:23,285 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5753 transitions. Word has length 25
[2022-02-09 02:18:23,285 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:23,285 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5753 transitions.
[2022-02-09 02:18:23,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5753 transitions.
[2022-02-09 02:18:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:23,288 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:23,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:23,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154
[2022-02-09 02:18:23,289 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:23,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1108663691, now seen corresponding path program 151 times
[2022-02-09 02:18:23,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:23,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840402029]
[2022-02-09 02:18:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:23,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:23,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:23,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840402029]
[2022-02-09 02:18:23,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840402029] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:23,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:23,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:23,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093037022]
[2022-02-09 02:18:23,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:23,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:23,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:23,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:23,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:23,416 INFO L87 Difference]: Start difference. First operand 1444 states and 5753 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:23,523 INFO L93 Difference]: Finished difference Result 3001 states and 11117 transitions.
[2022-02-09 02:18:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:23,530 INFO L225 Difference]: With dead ends: 3001
[2022-02-09 02:18:23,530 INFO L226 Difference]: Without dead ends: 2842
[2022-02-09 02:18:23,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:23,530 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:23,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 141 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states.
[2022-02-09 02:18:23,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1492.
[2022-02-09 02:18:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 3.9818913480885314) internal successors, (5937), 1491 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5937 transitions.
[2022-02-09 02:18:23,559 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5937 transitions. Word has length 25
[2022-02-09 02:18:23,559 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:23,559 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5937 transitions.
[2022-02-09 02:18:23,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5937 transitions.
[2022-02-09 02:18:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:23,562 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:23,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:23,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155
[2022-02-09 02:18:23,562 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:23,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961675, now seen corresponding path program 152 times
[2022-02-09 02:18:23,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:23,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855870986]
[2022-02-09 02:18:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:23,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:23,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:23,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855870986]
[2022-02-09 02:18:23,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855870986] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:23,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:23,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:23,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210084408]
[2022-02-09 02:18:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:23,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:23,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:23,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:23,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:23,683 INFO L87 Difference]: Start difference. First operand 1492 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:23,788 INFO L93 Difference]: Finished difference Result 3064 states and 11324 transitions.
[2022-02-09 02:18:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:23,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:23,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:23,794 INFO L225 Difference]: With dead ends: 3064
[2022-02-09 02:18:23,794 INFO L226 Difference]: Without dead ends: 2810
[2022-02-09 02:18:23,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:23,794 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:23,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:23,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-02-09 02:18:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1460.
[2022-02-09 02:18:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9814941740918437) internal successors, (5809), 1459 states have internal predecessors, (5809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5809 transitions.
[2022-02-09 02:18:23,822 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5809 transitions. Word has length 25
[2022-02-09 02:18:23,822 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:23,822 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5809 transitions.
[2022-02-09 02:18:23,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5809 transitions.
[2022-02-09 02:18:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:23,824 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:23,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:23,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156
[2022-02-09 02:18:23,825 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:23,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1969882519, now seen corresponding path program 153 times
[2022-02-09 02:18:23,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:23,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840232084]
[2022-02-09 02:18:23,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:23,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:23,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:23,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840232084]
[2022-02-09 02:18:23,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840232084] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:23,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:23,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:23,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409932966]
[2022-02-09 02:18:23,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:23,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:23,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:23,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:23,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:23,978 INFO L87 Difference]: Start difference. First operand 1460 states and 5809 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:24,109 INFO L93 Difference]: Finished difference Result 2906 states and 10766 transitions.
[2022-02-09 02:18:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:24,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:24,116 INFO L225 Difference]: With dead ends: 2906
[2022-02-09 02:18:24,116 INFO L226 Difference]: Without dead ends: 2747
[2022-02-09 02:18:24,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:24,117 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:24,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states.
[2022-02-09 02:18:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1476.
[2022-02-09 02:18:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.9708474576271184) internal successors, (5857), 1475 states have internal predecessors, (5857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5857 transitions.
[2022-02-09 02:18:24,144 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5857 transitions. Word has length 25
[2022-02-09 02:18:24,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:24,144 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5857 transitions.
[2022-02-09 02:18:24,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5857 transitions.
[2022-02-09 02:18:24,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:24,146 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:24,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:24,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157
[2022-02-09 02:18:24,147 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:24,147 INFO L85 PathProgramCache]: Analyzing trace with hash 27610519, now seen corresponding path program 154 times
[2022-02-09 02:18:24,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:24,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602982529]
[2022-02-09 02:18:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:24,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:24,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:24,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602982529]
[2022-02-09 02:18:24,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602982529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:24,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:24,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:24,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056373565]
[2022-02-09 02:18:24,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:24,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:24,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:24,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:24,284 INFO L87 Difference]: Start difference. First operand 1476 states and 5857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:24,408 INFO L93 Difference]: Finished difference Result 2794 states and 10429 transitions.
[2022-02-09 02:18:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:24,414 INFO L225 Difference]: With dead ends: 2794
[2022-02-09 02:18:24,415 INFO L226 Difference]: Without dead ends: 2603
[2022-02-09 02:18:24,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:24,415 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:24,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 129 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states.
[2022-02-09 02:18:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 1460.
[2022-02-09 02:18:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.976010966415353) internal successors, (5801), 1459 states have internal predecessors, (5801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5801 transitions.
[2022-02-09 02:18:24,441 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5801 transitions. Word has length 25
[2022-02-09 02:18:24,441 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:24,441 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5801 transitions.
[2022-02-09 02:18:24,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5801 transitions.
[2022-02-09 02:18:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:24,444 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:24,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:24,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158
[2022-02-09 02:18:24,445 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1715856791, now seen corresponding path program 155 times
[2022-02-09 02:18:24,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:24,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361432965]
[2022-02-09 02:18:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:24,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:24,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:24,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361432965]
[2022-02-09 02:18:24,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361432965] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:24,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:24,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:24,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710608121]
[2022-02-09 02:18:24,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:24,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:24,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:24,575 INFO L87 Difference]: Start difference. First operand 1460 states and 5801 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:24,704 INFO L93 Difference]: Finished difference Result 3041 states and 11257 transitions.
[2022-02-09 02:18:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:24,711 INFO L225 Difference]: With dead ends: 3041
[2022-02-09 02:18:24,711 INFO L226 Difference]: Without dead ends: 2866
[2022-02-09 02:18:24,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:24,711 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:24,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states.
[2022-02-09 02:18:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1500.
[2022-02-09 02:18:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.963308872581721) internal successors, (5941), 1499 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5941 transitions.
[2022-02-09 02:18:24,739 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5941 transitions. Word has length 25
[2022-02-09 02:18:24,739 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:24,739 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5941 transitions.
[2022-02-09 02:18:24,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5941 transitions.
[2022-02-09 02:18:24,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:24,741 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:24,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:24,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159
[2022-02-09 02:18:24,742 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 60332405, now seen corresponding path program 156 times
[2022-02-09 02:18:24,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:24,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91900938]
[2022-02-09 02:18:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:24,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:24,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:24,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91900938]
[2022-02-09 02:18:24,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91900938] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:24,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:24,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:24,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99599943]
[2022-02-09 02:18:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:24,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:24,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:24,871 INFO L87 Difference]: Start difference. First operand 1500 states and 5941 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:24,977 INFO L93 Difference]: Finished difference Result 2993 states and 11057 transitions.
[2022-02-09 02:18:24,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:24,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:24,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:24,984 INFO L225 Difference]: With dead ends: 2993
[2022-02-09 02:18:24,984 INFO L226 Difference]: Without dead ends: 2715
[2022-02-09 02:18:24,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:24,984 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:24,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 143 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states.
[2022-02-09 02:18:25,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1444.
[2022-02-09 02:18:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9812889812889813) internal successors, (5745), 1443 states have internal predecessors, (5745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5745 transitions.
[2022-02-09 02:18:25,011 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5745 transitions. Word has length 25
[2022-02-09 02:18:25,011 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5745 transitions.
[2022-02-09 02:18:25,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5745 transitions.
[2022-02-09 02:18:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:25,014 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:25,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:25,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160
[2022-02-09 02:18:25,014 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1918566737, now seen corresponding path program 157 times
[2022-02-09 02:18:25,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:25,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430169105]
[2022-02-09 02:18:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:25,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:25,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:25,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430169105]
[2022-02-09 02:18:25,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430169105] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:25,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:25,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:25,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756998813]
[2022-02-09 02:18:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:25,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:25,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:25,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:25,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:25,142 INFO L87 Difference]: Start difference. First operand 1444 states and 5745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:25,264 INFO L93 Difference]: Finished difference Result 2895 states and 10717 transitions.
[2022-02-09 02:18:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:25,271 INFO L225 Difference]: With dead ends: 2895
[2022-02-09 02:18:25,272 INFO L226 Difference]: Without dead ends: 2736
[2022-02-09 02:18:25,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:25,272 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:25,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:25,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states.
[2022-02-09 02:18:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1468.
[2022-02-09 02:18:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9734151329243352) internal successors, (5829), 1467 states have internal predecessors, (5829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5829 transitions.
[2022-02-09 02:18:25,300 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5829 transitions. Word has length 25
[2022-02-09 02:18:25,300 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:25,300 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5829 transitions.
[2022-02-09 02:18:25,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5829 transitions.
[2022-02-09 02:18:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:25,302 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:25,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:25,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161
[2022-02-09 02:18:25,303 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash 328631987, now seen corresponding path program 158 times
[2022-02-09 02:18:25,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:25,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164268855]
[2022-02-09 02:18:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:25,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:25,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:25,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164268855]
[2022-02-09 02:18:25,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164268855] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:25,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:25,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:25,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068535305]
[2022-02-09 02:18:25,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:25,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:25,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:25,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:25,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:25,427 INFO L87 Difference]: Start difference. First operand 1468 states and 5829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:25,549 INFO L93 Difference]: Finished difference Result 2925 states and 10810 transitions.
[2022-02-09 02:18:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:25,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:25,571 INFO L225 Difference]: With dead ends: 2925
[2022-02-09 02:18:25,571 INFO L226 Difference]: Without dead ends: 2720
[2022-02-09 02:18:25,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:25,572 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:25,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 161 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:25,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states.
[2022-02-09 02:18:25,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1452.
[2022-02-09 02:18:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 3.9786354238456236) internal successors, (5773), 1451 states have internal predecessors, (5773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5773 transitions.
[2022-02-09 02:18:25,598 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5773 transitions. Word has length 25
[2022-02-09 02:18:25,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:25,598 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5773 transitions.
[2022-02-09 02:18:25,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5773 transitions.
[2022-02-09 02:18:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:25,600 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:25,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:25,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162
[2022-02-09 02:18:25,600 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash 423888179, now seen corresponding path program 159 times
[2022-02-09 02:18:25,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:25,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21023279]
[2022-02-09 02:18:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:25,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:25,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:25,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21023279]
[2022-02-09 02:18:25,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21023279] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:25,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:25,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:25,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627774983]
[2022-02-09 02:18:25,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:25,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:25,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:25,743 INFO L87 Difference]: Start difference. First operand 1452 states and 5773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:25,849 INFO L93 Difference]: Finished difference Result 2849 states and 10552 transitions.
[2022-02-09 02:18:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:25,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:25,855 INFO L225 Difference]: With dead ends: 2849
[2022-02-09 02:18:25,855 INFO L226 Difference]: Without dead ends: 2690
[2022-02-09 02:18:25,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:25,856 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:25,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 154 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states.
[2022-02-09 02:18:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1468.
[2022-02-09 02:18:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9679618268575325) internal successors, (5821), 1467 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5821 transitions.
[2022-02-09 02:18:25,886 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5821 transitions. Word has length 25
[2022-02-09 02:18:25,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:25,886 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5821 transitions.
[2022-02-09 02:18:25,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5821 transitions.
[2022-02-09 02:18:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:25,889 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:25,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:25,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163
[2022-02-09 02:18:25,889 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1518383821, now seen corresponding path program 160 times
[2022-02-09 02:18:25,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:25,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888298759]
[2022-02-09 02:18:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:25,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:26,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:26,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888298759]
[2022-02-09 02:18:26,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888298759] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:26,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:26,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:26,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435179179]
[2022-02-09 02:18:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:26,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:26,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:26,011 INFO L87 Difference]: Start difference. First operand 1468 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:26,145 INFO L93 Difference]: Finished difference Result 2737 states and 10215 transitions.
[2022-02-09 02:18:26,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:26,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:26,151 INFO L225 Difference]: With dead ends: 2737
[2022-02-09 02:18:26,151 INFO L226 Difference]: Without dead ends: 2546
[2022-02-09 02:18:26,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:26,152 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:26,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 183 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states.
[2022-02-09 02:18:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1452.
[2022-02-09 02:18:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 3.9731219848380426) internal successors, (5765), 1451 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5765 transitions.
[2022-02-09 02:18:26,177 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5765 transitions. Word has length 25
[2022-02-09 02:18:26,177 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:26,177 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5765 transitions.
[2022-02-09 02:18:26,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5765 transitions.
[2022-02-09 02:18:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:26,180 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:26,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:26,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164
[2022-02-09 02:18:26,180 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:26,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:26,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1841050133, now seen corresponding path program 161 times
[2022-02-09 02:18:26,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:26,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299352823]
[2022-02-09 02:18:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:26,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:26,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:26,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299352823]
[2022-02-09 02:18:26,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299352823] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:26,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:26,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:26,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508062059]
[2022-02-09 02:18:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:26,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:26,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:26,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:26,303 INFO L87 Difference]: Start difference. First operand 1452 states and 5765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:26,419 INFO L93 Difference]: Finished difference Result 2887 states and 10689 transitions.
[2022-02-09 02:18:26,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:26,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:26,427 INFO L225 Difference]: With dead ends: 2887
[2022-02-09 02:18:26,427 INFO L226 Difference]: Without dead ends: 2698
[2022-02-09 02:18:26,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:26,427 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 109 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:26,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states.
[2022-02-09 02:18:26,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1476.
[2022-02-09 02:18:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.96) internal successors, (5841), 1475 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5841 transitions.
[2022-02-09 02:18:26,456 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5841 transitions. Word has length 25
[2022-02-09 02:18:26,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:26,456 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5841 transitions.
[2022-02-09 02:18:26,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5841 transitions.
[2022-02-09 02:18:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:26,458 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:26,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:26,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165
[2022-02-09 02:18:26,459 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1100098035, now seen corresponding path program 162 times
[2022-02-09 02:18:26,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:26,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385587230]
[2022-02-09 02:18:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:26,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:26,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:26,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385587230]
[2022-02-09 02:18:26,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385587230] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:26,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:26,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:26,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434401407]
[2022-02-09 02:18:26,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:26,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:26,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:26,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:26,581 INFO L87 Difference]: Start difference. First operand 1476 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:26,699 INFO L93 Difference]: Finished difference Result 2745 states and 10235 transitions.
[2022-02-09 02:18:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:26,706 INFO L225 Difference]: With dead ends: 2745
[2022-02-09 02:18:26,706 INFO L226 Difference]: Without dead ends: 2538
[2022-02-09 02:18:26,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:26,706 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:26,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 146 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states.
[2022-02-09 02:18:26,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1444.
[2022-02-09 02:18:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9785169785169785) internal successors, (5741), 1443 states have internal predecessors, (5741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5741 transitions.
[2022-02-09 02:18:26,732 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5741 transitions. Word has length 25
[2022-02-09 02:18:26,733 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:26,733 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5741 transitions.
[2022-02-09 02:18:26,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5741 transitions.
[2022-02-09 02:18:26,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:26,735 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:26,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:26,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166
[2022-02-09 02:18:26,735 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:26,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1548703881, now seen corresponding path program 163 times
[2022-02-09 02:18:26,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:26,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081563727]
[2022-02-09 02:18:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:26,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:26,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:26,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081563727]
[2022-02-09 02:18:26,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081563727] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:26,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:26,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:26,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778230551]
[2022-02-09 02:18:26,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:26,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:26,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:26,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:26,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:26,857 INFO L87 Difference]: Start difference. First operand 1444 states and 5741 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:26,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:26,984 INFO L93 Difference]: Finished difference Result 3119 states and 11567 transitions.
[2022-02-09 02:18:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:26,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:26,992 INFO L225 Difference]: With dead ends: 3119
[2022-02-09 02:18:26,992 INFO L226 Difference]: Without dead ends: 2930
[2022-02-09 02:18:26,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:26,992 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:26,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 153 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states.
[2022-02-09 02:18:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1496.
[2022-02-09 02:18:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.97123745819398) internal successors, (5937), 1495 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5937 transitions.
[2022-02-09 02:18:27,026 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5937 transitions. Word has length 25
[2022-02-09 02:18:27,026 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:27,026 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5937 transitions.
[2022-02-09 02:18:27,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5937 transitions.
[2022-02-09 02:18:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:27,029 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:27,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:27,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167
[2022-02-09 02:18:27,029 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:27,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:27,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2005311317, now seen corresponding path program 164 times
[2022-02-09 02:18:27,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:27,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904839825]
[2022-02-09 02:18:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:27,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:27,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:27,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904839825]
[2022-02-09 02:18:27,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904839825] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:27,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:27,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:27,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886252010]
[2022-02-09 02:18:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:27,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:27,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:27,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:27,154 INFO L87 Difference]: Start difference. First operand 1496 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:27,288 INFO L93 Difference]: Finished difference Result 3105 states and 11498 transitions.
[2022-02-09 02:18:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:27,295 INFO L225 Difference]: With dead ends: 3105
[2022-02-09 02:18:27,295 INFO L226 Difference]: Without dead ends: 2906
[2022-02-09 02:18:27,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:27,295 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:27,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 156 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states.
[2022-02-09 02:18:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1472.
[2022-02-09 02:18:27,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.976206662134602) internal successors, (5849), 1471 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions.
[2022-02-09 02:18:27,322 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25
[2022-02-09 02:18:27,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:27,322 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions.
[2022-02-09 02:18:27,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions.
[2022-02-09 02:18:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:27,324 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:27,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:27,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168
[2022-02-09 02:18:27,324 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:27,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:27,325 INFO L85 PathProgramCache]: Analyzing trace with hash 925227989, now seen corresponding path program 165 times
[2022-02-09 02:18:27,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:27,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953318603]
[2022-02-09 02:18:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:27,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:27,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:27,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953318603]
[2022-02-09 02:18:27,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953318603] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:27,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:27,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:27,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008509088]
[2022-02-09 02:18:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:27,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:27,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:27,454 INFO L87 Difference]: Start difference. First operand 1472 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:27,577 INFO L93 Difference]: Finished difference Result 3142 states and 11614 transitions.
[2022-02-09 02:18:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:27,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:27,585 INFO L225 Difference]: With dead ends: 3142
[2022-02-09 02:18:27,585 INFO L226 Difference]: Without dead ends: 2953
[2022-02-09 02:18:27,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:27,585 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:27,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 142 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:27,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states.
[2022-02-09 02:18:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1535.
[2022-02-09 02:18:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.9478487614080833) internal successors, (6056), 1534 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6056 transitions.
[2022-02-09 02:18:27,615 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6056 transitions. Word has length 25
[2022-02-09 02:18:27,615 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:27,615 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6056 transitions.
[2022-02-09 02:18:27,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6056 transitions.
[2022-02-09 02:18:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:27,618 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:27,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:27,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169
[2022-02-09 02:18:27,618 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1349786411, now seen corresponding path program 166 times
[2022-02-09 02:18:27,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:27,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742682054]
[2022-02-09 02:18:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:27,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:27,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:27,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742682054]
[2022-02-09 02:18:27,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742682054] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:27,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:27,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:27,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818907351]
[2022-02-09 02:18:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:27,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:27,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:27,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:27,747 INFO L87 Difference]: Start difference. First operand 1535 states and 6056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:27,890 INFO L93 Difference]: Finished difference Result 3175 states and 11697 transitions.
[2022-02-09 02:18:27,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:27,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:27,896 INFO L225 Difference]: With dead ends: 3175
[2022-02-09 02:18:27,896 INFO L226 Difference]: Without dead ends: 2890
[2022-02-09 02:18:27,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:27,897 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 99 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:27,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 179 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states.
[2022-02-09 02:18:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1472.
[2022-02-09 02:18:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.957171991842284) internal successors, (5821), 1471 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5821 transitions.
[2022-02-09 02:18:27,924 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5821 transitions. Word has length 25
[2022-02-09 02:18:27,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:27,924 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5821 transitions.
[2022-02-09 02:18:27,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5821 transitions.
[2022-02-09 02:18:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:27,926 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:27,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:27,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170
[2022-02-09 02:18:27,926 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:27,927 INFO L85 PathProgramCache]: Analyzing trace with hash 671395123, now seen corresponding path program 167 times
[2022-02-09 02:18:27,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:27,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152773586]
[2022-02-09 02:18:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:27,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:28,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:28,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152773586]
[2022-02-09 02:18:28,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152773586] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:28,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:28,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:28,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978011546]
[2022-02-09 02:18:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:28,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:28,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:28,080 INFO L87 Difference]: Start difference. First operand 1472 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:28,208 INFO L93 Difference]: Finished difference Result 3091 states and 11422 transitions.
[2022-02-09 02:18:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:28,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:28,216 INFO L225 Difference]: With dead ends: 3091
[2022-02-09 02:18:28,217 INFO L226 Difference]: Without dead ends: 2916
[2022-02-09 02:18:28,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:28,217 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:28,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:28,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states.
[2022-02-09 02:18:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1512.
[2022-02-09 02:18:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 3.9450694904037062) internal successors, (5961), 1511 states have internal predecessors, (5961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5961 transitions.
[2022-02-09 02:18:28,251 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5961 transitions. Word has length 25
[2022-02-09 02:18:28,251 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:28,251 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5961 transitions.
[2022-02-09 02:18:28,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5961 transitions.
[2022-02-09 02:18:28,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:28,254 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:28,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:28,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171
[2022-02-09 02:18:28,254 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:28,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 889746709, now seen corresponding path program 168 times
[2022-02-09 02:18:28,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:28,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236215488]
[2022-02-09 02:18:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:28,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:28,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:28,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236215488]
[2022-02-09 02:18:28,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236215488] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:28,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:28,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:28,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877083121]
[2022-02-09 02:18:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:28,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:28,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:28,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:28,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:28,397 INFO L87 Difference]: Start difference. First operand 1512 states and 5961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:28,508 INFO L93 Difference]: Finished difference Result 3043 states and 11222 transitions.
[2022-02-09 02:18:28,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:28,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:28,516 INFO L225 Difference]: With dead ends: 3043
[2022-02-09 02:18:28,516 INFO L226 Difference]: Without dead ends: 2741
[2022-02-09 02:18:28,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:28,517 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:28,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 148 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states.
[2022-02-09 02:18:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1432.
[2022-02-09 02:18:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9853249475890986) internal successors, (5703), 1431 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5703 transitions.
[2022-02-09 02:18:28,546 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5703 transitions. Word has length 25
[2022-02-09 02:18:28,546 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:28,546 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5703 transitions.
[2022-02-09 02:18:28,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5703 transitions.
[2022-02-09 02:18:28,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:28,548 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:28,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:28,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172
[2022-02-09 02:18:28,549 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:28,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash 334087797, now seen corresponding path program 169 times
[2022-02-09 02:18:28,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:28,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942023169]
[2022-02-09 02:18:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:28,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:28,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:28,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942023169]
[2022-02-09 02:18:28,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942023169] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:28,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:28,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:28,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436296730]
[2022-02-09 02:18:28,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:28,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:28,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:28,667 INFO L87 Difference]: Start difference. First operand 1432 states and 5703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:28,775 INFO L93 Difference]: Finished difference Result 3020 states and 11214 transitions.
[2022-02-09 02:18:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:28,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:28,782 INFO L225 Difference]: With dead ends: 3020
[2022-02-09 02:18:28,782 INFO L226 Difference]: Without dead ends: 2861
[2022-02-09 02:18:28,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:28,782 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:28,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states.
[2022-02-09 02:18:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 1488.
[2022-02-09 02:18:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9858776059179557) internal successors, (5927), 1487 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5927 transitions.
[2022-02-09 02:18:28,809 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5927 transitions. Word has length 25
[2022-02-09 02:18:28,810 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:28,810 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5927 transitions.
[2022-02-09 02:18:28,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5927 transitions.
[2022-02-09 02:18:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:28,812 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:28,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:28,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173
[2022-02-09 02:18:28,812 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -674210187, now seen corresponding path program 170 times
[2022-02-09 02:18:28,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:28,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72106184]
[2022-02-09 02:18:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:28,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:28,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:28,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72106184]
[2022-02-09 02:18:28,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72106184] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:28,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:28,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:28,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701330426]
[2022-02-09 02:18:28,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:28,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:28,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:28,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:28,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:28,930 INFO L87 Difference]: Start difference. First operand 1488 states and 5927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:29,043 INFO L93 Difference]: Finished difference Result 3083 states and 11421 transitions.
[2022-02-09 02:18:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:29,049 INFO L225 Difference]: With dead ends: 3083
[2022-02-09 02:18:29,049 INFO L226 Difference]: Without dead ends: 2829
[2022-02-09 02:18:29,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:29,050 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 112 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:29,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states.
[2022-02-09 02:18:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456.
[2022-02-09 02:18:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9855670103092784) internal successors, (5799), 1455 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5799 transitions.
[2022-02-09 02:18:29,083 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5799 transitions. Word has length 25
[2022-02-09 02:18:29,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:29,084 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5799 transitions.
[2022-02-09 02:18:29,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5799 transitions.
[2022-02-09 02:18:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:29,087 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:29,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:29,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174
[2022-02-09 02:18:29,087 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:29,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1323121303, now seen corresponding path program 171 times
[2022-02-09 02:18:29,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:29,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542606978]
[2022-02-09 02:18:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:29,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:29,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:29,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542606978]
[2022-02-09 02:18:29,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542606978] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:29,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:29,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:29,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212259977]
[2022-02-09 02:18:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:29,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:29,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:29,217 INFO L87 Difference]: Start difference. First operand 1456 states and 5799 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:29,329 INFO L93 Difference]: Finished difference Result 2969 states and 11015 transitions.
[2022-02-09 02:18:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:29,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:29,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:29,336 INFO L225 Difference]: With dead ends: 2969
[2022-02-09 02:18:29,336 INFO L226 Difference]: Without dead ends: 2810
[2022-02-09 02:18:29,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:29,336 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:29,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-02-09 02:18:29,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1472.
[2022-02-09 02:18:29,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9748470428280083) internal successors, (5847), 1471 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions.
[2022-02-09 02:18:29,369 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25
[2022-02-09 02:18:29,370 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:29,370 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions.
[2022-02-09 02:18:29,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions.
[2022-02-09 02:18:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:29,373 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:29,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:29,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175
[2022-02-09 02:18:29,373 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:29,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1963548009, now seen corresponding path program 172 times
[2022-02-09 02:18:29,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:29,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250904506]
[2022-02-09 02:18:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:29,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:29,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:29,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250904506]
[2022-02-09 02:18:29,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250904506] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:29,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:29,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:29,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799608723]
[2022-02-09 02:18:29,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:29,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:29,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:29,499 INFO L87 Difference]: Start difference. First operand 1472 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:29,618 INFO L93 Difference]: Finished difference Result 2997 states and 11103 transitions.
[2022-02-09 02:18:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:29,626 INFO L225 Difference]: With dead ends: 2997
[2022-02-09 02:18:29,626 INFO L226 Difference]: Without dead ends: 2794
[2022-02-09 02:18:29,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:29,627 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:29,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 152 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states.
[2022-02-09 02:18:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1456.
[2022-02-09 02:18:29,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.980068728522337) internal successors, (5791), 1455 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions.
[2022-02-09 02:18:29,657 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25
[2022-02-09 02:18:29,657 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:29,657 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions.
[2022-02-09 02:18:29,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions.
[2022-02-09 02:18:29,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:29,660 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:29,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:29,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176
[2022-02-09 02:18:29,660 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash -275301737, now seen corresponding path program 173 times
[2022-02-09 02:18:29,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:29,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069616142]
[2022-02-09 02:18:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:29,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:29,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:29,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069616142]
[2022-02-09 02:18:29,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069616142] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:29,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:29,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:29,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758947750]
[2022-02-09 02:18:29,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:29,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:29,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:29,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:29,783 INFO L87 Difference]: Start difference. First operand 1456 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:29,902 INFO L93 Difference]: Finished difference Result 3090 states and 11457 transitions.
[2022-02-09 02:18:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:29,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:29,909 INFO L225 Difference]: With dead ends: 3090
[2022-02-09 02:18:29,909 INFO L226 Difference]: Without dead ends: 2903
[2022-02-09 02:18:29,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:29,910 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 98 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:29,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 160 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states.
[2022-02-09 02:18:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1502.
[2022-02-09 02:18:29,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9626915389740174) internal successors, (5948), 1501 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions.
[2022-02-09 02:18:29,943 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25
[2022-02-09 02:18:29,943 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions.
[2022-02-09 02:18:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions.
[2022-02-09 02:18:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:29,946 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:29,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:29,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177
[2022-02-09 02:18:29,946 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash -628441227, now seen corresponding path program 174 times
[2022-02-09 02:18:29,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:29,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127056147]
[2022-02-09 02:18:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:29,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:30,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:30,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127056147]
[2022-02-09 02:18:30,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127056147] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:30,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:30,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:30,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66644185]
[2022-02-09 02:18:30,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:30,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:30,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:30,083 INFO L87 Difference]: Start difference. First operand 1502 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:30,184 INFO L93 Difference]: Finished difference Result 3125 states and 11546 transitions.
[2022-02-09 02:18:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:30,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:30,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:30,190 INFO L225 Difference]: With dead ends: 3125
[2022-02-09 02:18:30,190 INFO L226 Difference]: Without dead ends: 2841
[2022-02-09 02:18:30,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:30,191 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:30,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states.
[2022-02-09 02:18:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1440.
[2022-02-09 02:18:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.985406532314107) internal successors, (5735), 1439 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5735 transitions.
[2022-02-09 02:18:30,217 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5735 transitions. Word has length 25
[2022-02-09 02:18:30,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:30,217 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5735 transitions.
[2022-02-09 02:18:30,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5735 transitions.
[2022-02-09 02:18:30,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:30,220 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:30,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:30,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178
[2022-02-09 02:18:30,220 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1735205335, now seen corresponding path program 175 times
[2022-02-09 02:18:30,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:30,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793648701]
[2022-02-09 02:18:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:30,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:30,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:30,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793648701]
[2022-02-09 02:18:30,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793648701] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:30,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:30,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:30,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143070920]
[2022-02-09 02:18:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:30,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:30,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:30,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:30,336 INFO L87 Difference]: Start difference. First operand 1440 states and 5735 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:30,437 INFO L93 Difference]: Finished difference Result 2970 states and 11015 transitions.
[2022-02-09 02:18:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:30,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:30,444 INFO L225 Difference]: With dead ends: 2970
[2022-02-09 02:18:30,444 INFO L226 Difference]: Without dead ends: 2811
[2022-02-09 02:18:30,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:30,445 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:30,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 144 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:30,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states.
[2022-02-09 02:18:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1488.
[2022-02-09 02:18:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.980497646267653) internal successors, (5919), 1487 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5919 transitions.
[2022-02-09 02:18:30,474 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5919 transitions. Word has length 25
[2022-02-09 02:18:30,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:30,474 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5919 transitions.
[2022-02-09 02:18:30,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5919 transitions.
[2022-02-09 02:18:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:30,476 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:30,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:30,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179
[2022-02-09 02:18:30,477 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash 726907351, now seen corresponding path program 176 times
[2022-02-09 02:18:30,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:30,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054790149]
[2022-02-09 02:18:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:30,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:30,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:30,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054790149]
[2022-02-09 02:18:30,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054790149] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:30,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:30,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:30,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177787434]
[2022-02-09 02:18:30,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:30,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:30,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:30,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:30,594 INFO L87 Difference]: Start difference. First operand 1488 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:30,698 INFO L93 Difference]: Finished difference Result 3033 states and 11222 transitions.
[2022-02-09 02:18:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:30,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:30,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:30,704 INFO L225 Difference]: With dead ends: 3033
[2022-02-09 02:18:30,705 INFO L226 Difference]: Without dead ends: 2779
[2022-02-09 02:18:30,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:30,705 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:30,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 150 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:30,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states.
[2022-02-09 02:18:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1456.
[2022-02-09 02:18:30,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.980068728522337) internal successors, (5791), 1455 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions.
[2022-02-09 02:18:30,734 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25
[2022-02-09 02:18:30,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:30,734 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions.
[2022-02-09 02:18:30,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions.
[2022-02-09 02:18:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:30,737 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:30,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:30,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180
[2022-02-09 02:18:30,737 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1519203945, now seen corresponding path program 177 times
[2022-02-09 02:18:30,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:30,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665054939]
[2022-02-09 02:18:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:30,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:30,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:30,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665054939]
[2022-02-09 02:18:30,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665054939] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:30,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:30,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:30,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144384388]
[2022-02-09 02:18:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:30,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:30,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:30,860 INFO L87 Difference]: Start difference. First operand 1456 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:30,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:30,970 INFO L93 Difference]: Finished difference Result 2875 states and 10664 transitions.
[2022-02-09 02:18:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:30,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:30,978 INFO L225 Difference]: With dead ends: 2875
[2022-02-09 02:18:30,978 INFO L226 Difference]: Without dead ends: 2716
[2022-02-09 02:18:30,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:30,978 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:30,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states.
[2022-02-09 02:18:31,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1472.
[2022-02-09 02:18:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9694085656016314) internal successors, (5839), 1471 states have internal predecessors, (5839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5839 transitions.
[2022-02-09 02:18:31,007 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5839 transitions. Word has length 25
[2022-02-09 02:18:31,007 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:31,007 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5839 transitions.
[2022-02-09 02:18:31,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5839 transitions.
[2022-02-09 02:18:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:31,009 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:31,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:31,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181
[2022-02-09 02:18:31,009 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:31,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash 833491351, now seen corresponding path program 178 times
[2022-02-09 02:18:31,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:31,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369382713]
[2022-02-09 02:18:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:31,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:31,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:31,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369382713]
[2022-02-09 02:18:31,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369382713] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:31,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:31,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:31,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606984454]
[2022-02-09 02:18:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:31,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:31,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:31,129 INFO L87 Difference]: Start difference. First operand 1472 states and 5839 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:31,243 INFO L93 Difference]: Finished difference Result 2763 states and 10327 transitions.
[2022-02-09 02:18:31,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:31,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:31,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:31,252 INFO L225 Difference]: With dead ends: 2763
[2022-02-09 02:18:31,252 INFO L226 Difference]: Without dead ends: 2572
[2022-02-09 02:18:31,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:31,253 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 93 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:31,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 144 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states.
[2022-02-09 02:18:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 1456.
[2022-02-09 02:18:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9745704467353953) internal successors, (5783), 1455 states have internal predecessors, (5783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5783 transitions.
[2022-02-09 02:18:31,296 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5783 transitions. Word has length 25
[2022-02-09 02:18:31,296 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:31,296 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5783 transitions.
[2022-02-09 02:18:31,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5783 transitions.
[2022-02-09 02:18:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:31,300 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:31,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:31,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182
[2022-02-09 02:18:31,300 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:31,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1773229673, now seen corresponding path program 179 times
[2022-02-09 02:18:31,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:31,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885319942]
[2022-02-09 02:18:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:31,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:31,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:31,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885319942]
[2022-02-09 02:18:31,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885319942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:31,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:31,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:31,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321690785]
[2022-02-09 02:18:31,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:31,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:31,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:31,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:31,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:31,442 INFO L87 Difference]: Start difference. First operand 1456 states and 5783 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:31,584 INFO L93 Difference]: Finished difference Result 3010 states and 11155 transitions.
[2022-02-09 02:18:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:31,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:31,594 INFO L225 Difference]: With dead ends: 3010
[2022-02-09 02:18:31,594 INFO L226 Difference]: Without dead ends: 2835
[2022-02-09 02:18:31,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:31,594 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:31,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states.
[2022-02-09 02:18:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1496.
[2022-02-09 02:18:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.9618729096989966) internal successors, (5923), 1495 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5923 transitions.
[2022-02-09 02:18:31,639 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5923 transitions. Word has length 25
[2022-02-09 02:18:31,639 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:31,639 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5923 transitions.
[2022-02-09 02:18:31,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5923 transitions.
[2022-02-09 02:18:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:31,643 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:31,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:31,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183
[2022-02-09 02:18:31,643 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:31,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:31,643 INFO L85 PathProgramCache]: Analyzing trace with hash 866213237, now seen corresponding path program 180 times
[2022-02-09 02:18:31,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:31,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356081677]
[2022-02-09 02:18:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:31,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:31,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:31,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356081677]
[2022-02-09 02:18:31,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356081677] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:31,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:31,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:31,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210341123]
[2022-02-09 02:18:31,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:31,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:31,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:31,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:31,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:31,793 INFO L87 Difference]: Start difference. First operand 1496 states and 5923 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:31,924 INFO L93 Difference]: Finished difference Result 2962 states and 10955 transitions.
[2022-02-09 02:18:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:31,931 INFO L225 Difference]: With dead ends: 2962
[2022-02-09 02:18:31,932 INFO L226 Difference]: Without dead ends: 2684
[2022-02-09 02:18:31,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:31,932 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:31,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 158 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states.
[2022-02-09 02:18:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1440.
[2022-02-09 02:18:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9798471160528144) internal successors, (5727), 1439 states have internal predecessors, (5727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5727 transitions.
[2022-02-09 02:18:31,964 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5727 transitions. Word has length 25
[2022-02-09 02:18:31,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:31,964 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5727 transitions.
[2022-02-09 02:18:31,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:31,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5727 transitions.
[2022-02-09 02:18:31,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:31,966 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:31,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:31,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184
[2022-02-09 02:18:31,967 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 573562169, now seen corresponding path program 181 times
[2022-02-09 02:18:31,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:31,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687771946]
[2022-02-09 02:18:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:31,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:32,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:32,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687771946]
[2022-02-09 02:18:32,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687771946] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:32,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:32,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:32,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861285854]
[2022-02-09 02:18:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:32,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:32,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:32,090 INFO L87 Difference]: Start difference. First operand 1440 states and 5727 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:32,189 INFO L93 Difference]: Finished difference Result 2860 states and 10605 transitions.
[2022-02-09 02:18:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:32,196 INFO L225 Difference]: With dead ends: 2860
[2022-02-09 02:18:32,196 INFO L226 Difference]: Without dead ends: 2701
[2022-02-09 02:18:32,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:32,197 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:32,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 140 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states.
[2022-02-09 02:18:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1464.
[2022-02-09 02:18:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.971975393028025) internal successors, (5811), 1463 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5811 transitions.
[2022-02-09 02:18:32,226 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5811 transitions. Word has length 25
[2022-02-09 02:18:32,226 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:32,227 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5811 transitions.
[2022-02-09 02:18:32,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5811 transitions.
[2022-02-09 02:18:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:32,229 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:32,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:32,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185
[2022-02-09 02:18:32,229 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1581860153, now seen corresponding path program 182 times
[2022-02-09 02:18:32,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:32,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026688258]
[2022-02-09 02:18:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:32,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:32,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:32,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026688258]
[2022-02-09 02:18:32,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026688258] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:32,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:32,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:32,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533770473]
[2022-02-09 02:18:32,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:32,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:32,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:32,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:32,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:32,376 INFO L87 Difference]: Start difference. First operand 1464 states and 5811 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:32,508 INFO L93 Difference]: Finished difference Result 2888 states and 10693 transitions.
[2022-02-09 02:18:32,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:32,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:32,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:32,515 INFO L225 Difference]: With dead ends: 2888
[2022-02-09 02:18:32,515 INFO L226 Difference]: Without dead ends: 2685
[2022-02-09 02:18:32,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:32,515 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 93 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:32,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 184 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states.
[2022-02-09 02:18:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1448.
[2022-02-09 02:18:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.977194194885971) internal successors, (5755), 1447 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5755 transitions.
[2022-02-09 02:18:32,555 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5755 transitions. Word has length 25
[2022-02-09 02:18:32,555 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:32,555 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5755 transitions.
[2022-02-09 02:18:32,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5755 transitions.
[2022-02-09 02:18:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:32,558 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:32,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:32,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186
[2022-02-09 02:18:32,558 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1542517481, now seen corresponding path program 183 times
[2022-02-09 02:18:32,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:32,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168772360]
[2022-02-09 02:18:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:32,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:32,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:32,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:32,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168772360]
[2022-02-09 02:18:32,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168772360] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:32,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:32,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:32,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072546573]
[2022-02-09 02:18:32,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:32,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:32,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:32,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:32,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:32,697 INFO L87 Difference]: Start difference. First operand 1448 states and 5755 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:32,793 INFO L93 Difference]: Finished difference Result 2816 states and 10445 transitions.
[2022-02-09 02:18:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:32,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:32,800 INFO L225 Difference]: With dead ends: 2816
[2022-02-09 02:18:32,800 INFO L226 Difference]: Without dead ends: 2657
[2022-02-09 02:18:32,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:32,800 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:32,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 137 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states.
[2022-02-09 02:18:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 1464.
[2022-02-09 02:18:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9665071770334928) internal successors, (5803), 1463 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5803 transitions.
[2022-02-09 02:18:32,827 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5803 transitions. Word has length 25
[2022-02-09 02:18:32,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:32,827 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5803 transitions.
[2022-02-09 02:18:32,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5803 transitions.
[2022-02-09 02:18:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:32,829 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:32,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:32,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187
[2022-02-09 02:18:32,829 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:32,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:32,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2106918201, now seen corresponding path program 184 times
[2022-02-09 02:18:32,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:32,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271865385]
[2022-02-09 02:18:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:32,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:32,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:32,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271865385]
[2022-02-09 02:18:32,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271865385] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:32,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:32,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:32,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605168820]
[2022-02-09 02:18:32,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:32,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:32,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:32,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:32,956 INFO L87 Difference]: Start difference. First operand 1464 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:33,067 INFO L93 Difference]: Finished difference Result 2704 states and 10108 transitions.
[2022-02-09 02:18:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:33,075 INFO L225 Difference]: With dead ends: 2704
[2022-02-09 02:18:33,075 INFO L226 Difference]: Without dead ends: 2513
[2022-02-09 02:18:33,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:33,076 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:33,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 145 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:33,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states.
[2022-02-09 02:18:33,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 1448.
[2022-02-09 02:18:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9716655148583278) internal successors, (5747), 1447 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5747 transitions.
[2022-02-09 02:18:33,104 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5747 transitions. Word has length 25
[2022-02-09 02:18:33,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:33,104 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5747 transitions.
[2022-02-09 02:18:33,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5747 transitions.
[2022-02-09 02:18:33,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:33,106 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:33,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:33,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188
[2022-02-09 02:18:33,107 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:33,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash -925725383, now seen corresponding path program 185 times
[2022-02-09 02:18:33,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:33,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244045515]
[2022-02-09 02:18:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:33,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:33,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:33,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244045515]
[2022-02-09 02:18:33,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244045515] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:33,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:33,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:33,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081132498]
[2022-02-09 02:18:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:33,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:33,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:33,227 INFO L87 Difference]: Start difference. First operand 1448 states and 5747 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:33,341 INFO L93 Difference]: Finished difference Result 2852 states and 10577 transitions.
[2022-02-09 02:18:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:33,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:33,348 INFO L225 Difference]: With dead ends: 2852
[2022-02-09 02:18:33,349 INFO L226 Difference]: Without dead ends: 2665
[2022-02-09 02:18:33,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:33,349 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:33,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states.
[2022-02-09 02:18:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1472.
[2022-02-09 02:18:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9585316111488784) internal successors, (5823), 1471 states have internal predecessors, (5823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5823 transitions.
[2022-02-09 02:18:33,379 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5823 transitions. Word has length 25
[2022-02-09 02:18:33,379 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:33,379 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5823 transitions.
[2022-02-09 02:18:33,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5823 transitions.
[2022-02-09 02:18:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:33,381 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:33,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:33,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189
[2022-02-09 02:18:33,381 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1977097367, now seen corresponding path program 186 times
[2022-02-09 02:18:33,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:33,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540081057]
[2022-02-09 02:18:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:33,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:33,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:33,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540081057]
[2022-02-09 02:18:33,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540081057] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:33,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:33,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:33,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107795255]
[2022-02-09 02:18:33,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:33,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:33,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:33,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:33,503 INFO L87 Difference]: Start difference. First operand 1472 states and 5823 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:33,638 INFO L93 Difference]: Finished difference Result 2712 states and 10128 transitions.
[2022-02-09 02:18:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:33,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:33,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:33,645 INFO L225 Difference]: With dead ends: 2712
[2022-02-09 02:18:33,645 INFO L226 Difference]: Without dead ends: 2505
[2022-02-09 02:18:33,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:33,646 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 83 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:33,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states.
[2022-02-09 02:18:33,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1440.
[2022-02-09 02:18:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.977067407922168) internal successors, (5723), 1439 states have internal predecessors, (5723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5723 transitions.
[2022-02-09 02:18:33,673 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5723 transitions. Word has length 25
[2022-02-09 02:18:33,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:33,673 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5723 transitions.
[2022-02-09 02:18:33,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5723 transitions.
[2022-02-09 02:18:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:33,676 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:33,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:33,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190
[2022-02-09 02:18:33,676 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:33,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:33,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2018695879, now seen corresponding path program 187 times
[2022-02-09 02:18:33,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:33,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170261246]
[2022-02-09 02:18:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:33,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:33,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:33,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170261246]
[2022-02-09 02:18:33,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170261246] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:33,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:33,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:33,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523129525]
[2022-02-09 02:18:33,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:33,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:33,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:33,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:33,801 INFO L87 Difference]: Start difference. First operand 1440 states and 5723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:33,914 INFO L93 Difference]: Finished difference Result 3057 states and 11371 transitions.
[2022-02-09 02:18:33,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:33,921 INFO L225 Difference]: With dead ends: 3057
[2022-02-09 02:18:33,921 INFO L226 Difference]: Without dead ends: 2870
[2022-02-09 02:18:33,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:33,922 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:33,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 143 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states.
[2022-02-09 02:18:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484.
[2022-02-09 02:18:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9723533378287255) internal successors, (5891), 1483 states have internal predecessors, (5891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5891 transitions.
[2022-02-09 02:18:33,952 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5891 transitions. Word has length 25
[2022-02-09 02:18:33,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:33,952 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5891 transitions.
[2022-02-09 02:18:33,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:33,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5891 transitions.
[2022-02-09 02:18:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:33,955 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:33,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:33,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191
[2022-02-09 02:18:33,955 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash 884126871, now seen corresponding path program 188 times
[2022-02-09 02:18:33,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:33,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616796125]
[2022-02-09 02:18:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:33,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:34,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:34,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616796125]
[2022-02-09 02:18:34,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616796125] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:34,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:34,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:34,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058129154]
[2022-02-09 02:18:34,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:34,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:34,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:34,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:34,079 INFO L87 Difference]: Start difference. First operand 1484 states and 5891 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:34,210 INFO L93 Difference]: Finished difference Result 3045 states and 11307 transitions.
[2022-02-09 02:18:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:34,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:34,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:34,217 INFO L225 Difference]: With dead ends: 3045
[2022-02-09 02:18:34,217 INFO L226 Difference]: Without dead ends: 2846
[2022-02-09 02:18:34,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:34,217 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:34,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states.
[2022-02-09 02:18:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 1460.
[2022-02-09 02:18:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.977381768334476) internal successors, (5803), 1459 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions.
[2022-02-09 02:18:34,247 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25
[2022-02-09 02:18:34,247 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:34,247 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions.
[2022-02-09 02:18:34,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions.
[2022-02-09 02:18:34,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:34,249 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:34,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:34,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192
[2022-02-09 02:18:34,250 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:34,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash 455235991, now seen corresponding path program 189 times
[2022-02-09 02:18:34,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:34,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339962422]
[2022-02-09 02:18:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:34,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:34,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:34,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339962422]
[2022-02-09 02:18:34,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339962422] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:34,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:34,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:34,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893826779]
[2022-02-09 02:18:34,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:34,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:34,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:34,392 INFO L87 Difference]: Start difference. First operand 1460 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:34,546 INFO L93 Difference]: Finished difference Result 3080 states and 11418 transitions.
[2022-02-09 02:18:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:34,558 INFO L225 Difference]: With dead ends: 3080
[2022-02-09 02:18:34,558 INFO L226 Difference]: Without dead ends: 2893
[2022-02-09 02:18:34,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:34,558 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 98 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:34,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 156 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states.
[2022-02-09 02:18:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1506.
[2022-02-09 02:18:34,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9601328903654487) internal successors, (5960), 1505 states have internal predecessors, (5960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5960 transitions.
[2022-02-09 02:18:34,592 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5960 transitions. Word has length 25
[2022-02-09 02:18:34,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:34,592 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5960 transitions.
[2022-02-09 02:18:34,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5960 transitions.
[2022-02-09 02:18:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:34,594 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:34,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:34,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193
[2022-02-09 02:18:34,595 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1823996439, now seen corresponding path program 190 times
[2022-02-09 02:18:34,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:34,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850075220]
[2022-02-09 02:18:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:34,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:34,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:34,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850075220]
[2022-02-09 02:18:34,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850075220] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:34,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:34,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:34,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71727381]
[2022-02-09 02:18:34,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:34,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:34,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:34,725 INFO L87 Difference]: Start difference. First operand 1506 states and 5960 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:34,860 INFO L93 Difference]: Finished difference Result 3115 states and 11507 transitions.
[2022-02-09 02:18:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:34,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:34,868 INFO L225 Difference]: With dead ends: 3115
[2022-02-09 02:18:34,868 INFO L226 Difference]: Without dead ends: 2847
[2022-02-09 02:18:34,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:34,868 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:34,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 179 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states.
[2022-02-09 02:18:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1460.
[2022-02-09 02:18:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9636737491432488) internal successors, (5783), 1459 states have internal predecessors, (5783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5783 transitions.
[2022-02-09 02:18:34,898 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5783 transitions. Word has length 25
[2022-02-09 02:18:34,898 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:34,898 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5783 transitions.
[2022-02-09 02:18:34,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5783 transitions.
[2022-02-09 02:18:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:34,901 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:34,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:34,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194
[2022-02-09 02:18:34,901 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:34,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash 819493365, now seen corresponding path program 191 times
[2022-02-09 02:18:34,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:34,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999647845]
[2022-02-09 02:18:34,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:34,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:35,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:35,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999647845]
[2022-02-09 02:18:35,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999647845] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:35,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:35,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:35,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108619767]
[2022-02-09 02:18:35,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:35,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:35,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:35,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:35,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:35,017 INFO L87 Difference]: Start difference. First operand 1460 states and 5783 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:35,127 INFO L93 Difference]: Finished difference Result 3050 states and 11295 transitions.
[2022-02-09 02:18:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:35,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:35,134 INFO L225 Difference]: With dead ends: 3050
[2022-02-09 02:18:35,135 INFO L226 Difference]: Without dead ends: 2875
[2022-02-09 02:18:35,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:35,135 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:35,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 136 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:35,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states.
[2022-02-09 02:18:35,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1500.
[2022-02-09 02:18:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.95130086724483) internal successors, (5923), 1499 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5923 transitions.
[2022-02-09 02:18:35,166 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5923 transitions. Word has length 25
[2022-02-09 02:18:35,166 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:35,166 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5923 transitions.
[2022-02-09 02:18:35,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5923 transitions.
[2022-02-09 02:18:35,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:35,168 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:35,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:35,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195
[2022-02-09 02:18:35,168 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:35,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:35,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1037844951, now seen corresponding path program 192 times
[2022-02-09 02:18:35,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:35,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114870977]
[2022-02-09 02:18:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:35,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:35,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:35,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114870977]
[2022-02-09 02:18:35,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114870977] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:35,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:35,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:35,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049947476]
[2022-02-09 02:18:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:35,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:35,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:35,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:35,287 INFO L87 Difference]: Start difference. First operand 1500 states and 5923 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:35,388 INFO L93 Difference]: Finished difference Result 3002 states and 11095 transitions.
[2022-02-09 02:18:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:35,396 INFO L225 Difference]: With dead ends: 3002
[2022-02-09 02:18:35,396 INFO L226 Difference]: Without dead ends: 2712
[2022-02-09 02:18:35,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:35,396 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:35,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 133 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states.
[2022-02-09 02:18:35,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1432.
[2022-02-09 02:18:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9825296995108315) internal successors, (5699), 1431 states have internal predecessors, (5699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5699 transitions.
[2022-02-09 02:18:35,426 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5699 transitions. Word has length 25
[2022-02-09 02:18:35,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:35,426 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5699 transitions.
[2022-02-09 02:18:35,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5699 transitions.
[2022-02-09 02:18:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:35,428 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:35,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:35,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196
[2022-02-09 02:18:35,428 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:35,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1717640593, now seen corresponding path program 193 times
[2022-02-09 02:18:35,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:35,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312971120]
[2022-02-09 02:18:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:35,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:35,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:35,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312971120]
[2022-02-09 02:18:35,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312971120] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:35,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:35,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:35,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611456048]
[2022-02-09 02:18:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:35,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:35,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:35,548 INFO L87 Difference]: Start difference. First operand 1432 states and 5699 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:35,654 INFO L93 Difference]: Finished difference Result 2797 states and 10356 transitions.
[2022-02-09 02:18:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:35,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:35,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:35,661 INFO L225 Difference]: With dead ends: 2797
[2022-02-09 02:18:35,661 INFO L226 Difference]: Without dead ends: 2638
[2022-02-09 02:18:35,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:35,662 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:35,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states.
[2022-02-09 02:18:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 1460.
[2022-02-09 02:18:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.977381768334476) internal successors, (5803), 1459 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions.
[2022-02-09 02:18:35,691 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25
[2022-02-09 02:18:35,691 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:35,691 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions.
[2022-02-09 02:18:35,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions.
[2022-02-09 02:18:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:35,694 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:35,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:35,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197
[2022-02-09 02:18:35,694 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:35,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:35,694 INFO L85 PathProgramCache]: Analyzing trace with hash 127705843, now seen corresponding path program 194 times
[2022-02-09 02:18:35,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:35,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25001178]
[2022-02-09 02:18:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:35,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:35,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:35,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25001178]
[2022-02-09 02:18:35,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25001178] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:35,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:35,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:35,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583263377]
[2022-02-09 02:18:35,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:35,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:35,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:35,815 INFO L87 Difference]: Start difference. First operand 1460 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:35,932 INFO L93 Difference]: Finished difference Result 2827 states and 10449 transitions.
[2022-02-09 02:18:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:35,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:35,939 INFO L225 Difference]: With dead ends: 2827
[2022-02-09 02:18:35,939 INFO L226 Difference]: Without dead ends: 2622
[2022-02-09 02:18:35,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:35,940 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:35,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 153 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states.
[2022-02-09 02:18:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 1444.
[2022-02-09 02:18:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9826749826749825) internal successors, (5747), 1443 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5747 transitions.
[2022-02-09 02:18:35,971 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5747 transitions. Word has length 25
[2022-02-09 02:18:35,971 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:35,971 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5747 transitions.
[2022-02-09 02:18:35,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:35,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5747 transitions.
[2022-02-09 02:18:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:35,974 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:35,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:35,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198
[2022-02-09 02:18:35,974 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1496264077, now seen corresponding path program 195 times
[2022-02-09 02:18:35,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:35,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190344545]
[2022-02-09 02:18:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:35,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:36,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:36,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190344545]
[2022-02-09 02:18:36,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190344545] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:36,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:36,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:36,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855085557]
[2022-02-09 02:18:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:36,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:36,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:36,117 INFO L87 Difference]: Start difference. First operand 1444 states and 5747 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:36,221 INFO L93 Difference]: Finished difference Result 2795 states and 10343 transitions.
[2022-02-09 02:18:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:36,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:36,228 INFO L225 Difference]: With dead ends: 2795
[2022-02-09 02:18:36,229 INFO L226 Difference]: Without dead ends: 2636
[2022-02-09 02:18:36,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:36,229 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:36,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 153 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states.
[2022-02-09 02:18:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 1460.
[2022-02-09 02:18:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.971898560657985) internal successors, (5795), 1459 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions.
[2022-02-09 02:18:36,260 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25
[2022-02-09 02:18:36,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:36,260 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions.
[2022-02-09 02:18:36,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions.
[2022-02-09 02:18:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:36,263 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:36,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:36,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199
[2022-02-09 02:18:36,263 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:36,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:36,263 INFO L85 PathProgramCache]: Analyzing trace with hash -487966093, now seen corresponding path program 196 times
[2022-02-09 02:18:36,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:36,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293047571]
[2022-02-09 02:18:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:36,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:36,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:36,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293047571]
[2022-02-09 02:18:36,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293047571] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:36,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:36,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:36,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473294514]
[2022-02-09 02:18:36,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:36,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:36,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:36,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:36,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:36,390 INFO L87 Difference]: Start difference. First operand 1460 states and 5795 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:36,513 INFO L93 Difference]: Finished difference Result 2823 states and 10431 transitions.
[2022-02-09 02:18:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:36,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:36,520 INFO L225 Difference]: With dead ends: 2823
[2022-02-09 02:18:36,520 INFO L226 Difference]: Without dead ends: 2620
[2022-02-09 02:18:36,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:36,520 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:36,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 171 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:36,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states.
[2022-02-09 02:18:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1444.
[2022-02-09 02:18:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9771309771309773) internal successors, (5739), 1443 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions.
[2022-02-09 02:18:36,546 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25
[2022-02-09 02:18:36,546 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:36,546 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions.
[2022-02-09 02:18:36,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions.
[2022-02-09 02:18:36,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:36,549 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:36,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:36,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200
[2022-02-09 02:18:36,549 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash -79102123, now seen corresponding path program 197 times
[2022-02-09 02:18:36,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:36,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620749666]
[2022-02-09 02:18:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:36,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:36,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:36,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620749666]
[2022-02-09 02:18:36,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620749666] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:36,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:36,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:36,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431801803]
[2022-02-09 02:18:36,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:36,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:36,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:36,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:36,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:36,672 INFO L87 Difference]: Start difference. First operand 1444 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:36,787 INFO L93 Difference]: Finished difference Result 2869 states and 10612 transitions.
[2022-02-09 02:18:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:36,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:36,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:36,794 INFO L225 Difference]: With dead ends: 2869
[2022-02-09 02:18:36,794 INFO L226 Difference]: Without dead ends: 2680
[2022-02-09 02:18:36,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:36,795 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:36,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states.
[2022-02-09 02:18:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1474.
[2022-02-09 02:18:36,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9592668024439917) internal successors, (5832), 1473 states have internal predecessors, (5832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5832 transitions.
[2022-02-09 02:18:36,826 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5832 transitions. Word has length 25
[2022-02-09 02:18:36,826 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:36,826 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5832 transitions.
[2022-02-09 02:18:36,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5832 transitions.
[2022-02-09 02:18:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:36,828 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:36,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:36,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201
[2022-02-09 02:18:36,829 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2122439117, now seen corresponding path program 198 times
[2022-02-09 02:18:36,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:36,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803533705]
[2022-02-09 02:18:36,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:36,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:36,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:36,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803533705]
[2022-02-09 02:18:36,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803533705] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:36,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:36,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:36,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576448273]
[2022-02-09 02:18:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:36,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:36,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:36,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:36,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:36,958 INFO L87 Difference]: Start difference. First operand 1474 states and 5832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:37,085 INFO L93 Difference]: Finished difference Result 2867 states and 10577 transitions.
[2022-02-09 02:18:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:37,092 INFO L225 Difference]: With dead ends: 2867
[2022-02-09 02:18:37,092 INFO L226 Difference]: Without dead ends: 2642
[2022-02-09 02:18:37,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:37,092 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:37,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states.
[2022-02-09 02:18:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1436.
[2022-02-09 02:18:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9825783972125435) internal successors, (5715), 1435 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5715 transitions.
[2022-02-09 02:18:37,122 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5715 transitions. Word has length 25
[2022-02-09 02:18:37,122 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:37,122 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5715 transitions.
[2022-02-09 02:18:37,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5715 transitions.
[2022-02-09 02:18:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:37,124 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:37,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:37,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202
[2022-02-09 02:18:37,125 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash 543680883, now seen corresponding path program 199 times
[2022-02-09 02:18:37,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:37,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378292628]
[2022-02-09 02:18:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:37,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:37,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:37,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378292628]
[2022-02-09 02:18:37,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378292628] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:37,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:37,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:37,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130632741]
[2022-02-09 02:18:37,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:37,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:37,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:37,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:37,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:37,243 INFO L87 Difference]: Start difference. First operand 1436 states and 5715 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:37,351 INFO L93 Difference]: Finished difference Result 2763 states and 10225 transitions.
[2022-02-09 02:18:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:37,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:37,358 INFO L225 Difference]: With dead ends: 2763
[2022-02-09 02:18:37,358 INFO L226 Difference]: Without dead ends: 2604
[2022-02-09 02:18:37,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:37,358 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:37,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states.
[2022-02-09 02:18:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 1460.
[2022-02-09 02:18:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9746401644962304) internal successors, (5799), 1459 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5799 transitions.
[2022-02-09 02:18:37,386 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5799 transitions. Word has length 25
[2022-02-09 02:18:37,386 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:37,386 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5799 transitions.
[2022-02-09 02:18:37,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5799 transitions.
[2022-02-09 02:18:37,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:37,389 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:37,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:37,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203
[2022-02-09 02:18:37,389 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:37,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1046253867, now seen corresponding path program 200 times
[2022-02-09 02:18:37,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:37,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529472096]
[2022-02-09 02:18:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:37,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:37,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:37,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529472096]
[2022-02-09 02:18:37,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529472096] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:37,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:37,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:37,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977755511]
[2022-02-09 02:18:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:37,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:37,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:37,507 INFO L87 Difference]: Start difference. First operand 1460 states and 5799 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:37,615 INFO L93 Difference]: Finished difference Result 2793 states and 10318 transitions.
[2022-02-09 02:18:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:37,622 INFO L225 Difference]: With dead ends: 2793
[2022-02-09 02:18:37,622 INFO L226 Difference]: Without dead ends: 2588
[2022-02-09 02:18:37,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:37,622 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 136 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:37,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 128 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:37,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states.
[2022-02-09 02:18:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1444.
[2022-02-09 02:18:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9799029799029797) internal successors, (5743), 1443 states have internal predecessors, (5743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5743 transitions.
[2022-02-09 02:18:37,652 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5743 transitions. Word has length 25
[2022-02-09 02:18:37,652 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:37,652 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5743 transitions.
[2022-02-09 02:18:37,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5743 transitions.
[2022-02-09 02:18:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:37,654 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:37,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:37,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204
[2022-02-09 02:18:37,655 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash 593248627, now seen corresponding path program 201 times
[2022-02-09 02:18:37,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:37,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839430146]
[2022-02-09 02:18:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:37,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:37,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:37,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839430146]
[2022-02-09 02:18:37,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839430146] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:37,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:37,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:37,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013439679]
[2022-02-09 02:18:37,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:37,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:37,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:37,780 INFO L87 Difference]: Start difference. First operand 1444 states and 5743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:37,889 INFO L93 Difference]: Finished difference Result 2717 states and 10060 transitions.
[2022-02-09 02:18:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:37,896 INFO L225 Difference]: With dead ends: 2717
[2022-02-09 02:18:37,896 INFO L226 Difference]: Without dead ends: 2558
[2022-02-09 02:18:37,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:37,896 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:37,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 159 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states.
[2022-02-09 02:18:37,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 1460.
[2022-02-09 02:18:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9691569568197393) internal successors, (5791), 1459 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5791 transitions.
[2022-02-09 02:18:37,923 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5791 transitions. Word has length 25
[2022-02-09 02:18:37,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:37,924 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5791 transitions.
[2022-02-09 02:18:37,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:37,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5791 transitions.
[2022-02-09 02:18:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:37,927 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:37,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:37,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205
[2022-02-09 02:18:37,928 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1349023373, now seen corresponding path program 202 times
[2022-02-09 02:18:37,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:37,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304248440]
[2022-02-09 02:18:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:37,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:38,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:38,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304248440]
[2022-02-09 02:18:38,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304248440] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:38,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:38,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:38,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638895855]
[2022-02-09 02:18:38,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:38,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:38,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:38,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:38,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:38,055 INFO L87 Difference]: Start difference. First operand 1460 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:38,181 INFO L93 Difference]: Finished difference Result 2605 states and 9723 transitions.
[2022-02-09 02:18:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:38,187 INFO L225 Difference]: With dead ends: 2605
[2022-02-09 02:18:38,188 INFO L226 Difference]: Without dead ends: 2414
[2022-02-09 02:18:38,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:38,188 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 85 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:38,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 178 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states.
[2022-02-09 02:18:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 1444.
[2022-02-09 02:18:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9743589743589745) internal successors, (5735), 1443 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5735 transitions.
[2022-02-09 02:18:38,217 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5735 transitions. Word has length 25
[2022-02-09 02:18:38,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:38,217 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5735 transitions.
[2022-02-09 02:18:38,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5735 transitions.
[2022-02-09 02:18:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:38,220 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:38,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:38,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206
[2022-02-09 02:18:38,220 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2010410581, now seen corresponding path program 203 times
[2022-02-09 02:18:38,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:38,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440785493]
[2022-02-09 02:18:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:38,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:38,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:38,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440785493]
[2022-02-09 02:18:38,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440785493] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:38,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:38,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:38,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023652200]
[2022-02-09 02:18:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:38,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:38,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:38,343 INFO L87 Difference]: Start difference. First operand 1444 states and 5735 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:38,463 INFO L93 Difference]: Finished difference Result 2755 states and 10197 transitions.
[2022-02-09 02:18:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:38,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:38,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:38,470 INFO L225 Difference]: With dead ends: 2755
[2022-02-09 02:18:38,470 INFO L226 Difference]: Without dead ends: 2566
[2022-02-09 02:18:38,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:38,470 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:38,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states.
[2022-02-09 02:18:38,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 1468.
[2022-02-09 02:18:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9611451942740286) internal successors, (5811), 1467 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5811 transitions.
[2022-02-09 02:18:38,495 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5811 transitions. Word has length 25
[2022-02-09 02:18:38,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:38,495 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5811 transitions.
[2022-02-09 02:18:38,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5811 transitions.
[2022-02-09 02:18:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:38,498 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:38,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:38,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207
[2022-02-09 02:18:38,498 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1269458483, now seen corresponding path program 204 times
[2022-02-09 02:18:38,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:38,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344666845]
[2022-02-09 02:18:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:38,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:38,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:38,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344666845]
[2022-02-09 02:18:38,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344666845] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:38,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:38,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:38,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84877388]
[2022-02-09 02:18:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:38,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:38,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:38,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:38,619 INFO L87 Difference]: Start difference. First operand 1468 states and 5811 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:38,736 INFO L93 Difference]: Finished difference Result 2613 states and 9743 transitions.
[2022-02-09 02:18:38,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:38,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:38,746 INFO L225 Difference]: With dead ends: 2613
[2022-02-09 02:18:38,746 INFO L226 Difference]: Without dead ends: 2406
[2022-02-09 02:18:38,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:38,746 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:38,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 154 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states.
[2022-02-09 02:18:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 1436.
[2022-02-09 02:18:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9797909407665504) internal successors, (5711), 1435 states have internal predecessors, (5711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5711 transitions.
[2022-02-09 02:18:38,784 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5711 transitions. Word has length 25
[2022-02-09 02:18:38,784 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:38,784 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5711 transitions.
[2022-02-09 02:18:38,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:38,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5711 transitions.
[2022-02-09 02:18:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:38,786 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:38,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:38,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208
[2022-02-09 02:18:38,786 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash 931685845, now seen corresponding path program 205 times
[2022-02-09 02:18:38,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:38,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378430749]
[2022-02-09 02:18:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:38,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:38,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:38,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378430749]
[2022-02-09 02:18:38,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378430749] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:38,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:38,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:38,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900325862]
[2022-02-09 02:18:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:38,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:38,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:38,913 INFO L87 Difference]: Start difference. First operand 1436 states and 5711 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:39,016 INFO L93 Difference]: Finished difference Result 2759 states and 10211 transitions.
[2022-02-09 02:18:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:39,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:39,023 INFO L225 Difference]: With dead ends: 2759
[2022-02-09 02:18:39,023 INFO L226 Difference]: Without dead ends: 2600
[2022-02-09 02:18:39,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:39,023 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:39,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:39,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states.
[2022-02-09 02:18:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1460.
[2022-02-09 02:18:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.971898560657985) internal successors, (5795), 1459 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions.
[2022-02-09 02:18:39,052 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25
[2022-02-09 02:18:39,052 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:39,052 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions.
[2022-02-09 02:18:39,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions.
[2022-02-09 02:18:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:39,055 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:39,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:39,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209
[2022-02-09 02:18:39,055 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1939983829, now seen corresponding path program 206 times
[2022-02-09 02:18:39,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:39,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346985313]
[2022-02-09 02:18:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:39,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:39,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:39,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346985313]
[2022-02-09 02:18:39,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346985313] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:39,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:39,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:39,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499618100]
[2022-02-09 02:18:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:39,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:39,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:39,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:39,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:39,179 INFO L87 Difference]: Start difference. First operand 1460 states and 5795 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:39,290 INFO L93 Difference]: Finished difference Result 2787 states and 10299 transitions.
[2022-02-09 02:18:39,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:39,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:39,299 INFO L225 Difference]: With dead ends: 2787
[2022-02-09 02:18:39,299 INFO L226 Difference]: Without dead ends: 2584
[2022-02-09 02:18:39,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:39,300 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:39,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 143 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states.
[2022-02-09 02:18:39,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 1444.
[2022-02-09 02:18:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9771309771309773) internal successors, (5739), 1443 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions.
[2022-02-09 02:18:39,344 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25
[2022-02-09 02:18:39,344 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:39,344 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions.
[2022-02-09 02:18:39,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions.
[2022-02-09 02:18:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:39,346 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:39,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:39,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210
[2022-02-09 02:18:39,346 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:39,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1184393805, now seen corresponding path program 207 times
[2022-02-09 02:18:39,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:39,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026061578]
[2022-02-09 02:18:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:39,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:39,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:39,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026061578]
[2022-02-09 02:18:39,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026061578] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:39,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:39,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:39,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324801]
[2022-02-09 02:18:39,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:39,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:39,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:39,466 INFO L87 Difference]: Start difference. First operand 1444 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:39,573 INFO L93 Difference]: Finished difference Result 2715 states and 10051 transitions.
[2022-02-09 02:18:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:39,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:39,580 INFO L225 Difference]: With dead ends: 2715
[2022-02-09 02:18:39,580 INFO L226 Difference]: Without dead ends: 2556
[2022-02-09 02:18:39,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:39,580 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:39,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 157 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states.
[2022-02-09 02:18:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1460.
[2022-02-09 02:18:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9664153529814943) internal successors, (5787), 1459 states have internal predecessors, (5787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5787 transitions.
[2022-02-09 02:18:39,607 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5787 transitions. Word has length 25
[2022-02-09 02:18:39,607 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:39,607 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5787 transitions.
[2022-02-09 02:18:39,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5787 transitions.
[2022-02-09 02:18:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:39,610 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:39,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:39,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211
[2022-02-09 02:18:39,610 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:39,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1829925419, now seen corresponding path program 208 times
[2022-02-09 02:18:39,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:39,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512552803]
[2022-02-09 02:18:39,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:39,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:39,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:39,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512552803]
[2022-02-09 02:18:39,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512552803] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:39,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:39,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:39,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086820354]
[2022-02-09 02:18:39,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:39,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:39,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:39,729 INFO L87 Difference]: Start difference. First operand 1460 states and 5787 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:39,848 INFO L93 Difference]: Finished difference Result 2603 states and 9714 transitions.
[2022-02-09 02:18:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:39,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:39,854 INFO L225 Difference]: With dead ends: 2603
[2022-02-09 02:18:39,855 INFO L226 Difference]: Without dead ends: 2412
[2022-02-09 02:18:39,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:39,855 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:39,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 160 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states.
[2022-02-09 02:18:39,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1444.
[2022-02-09 02:18:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9715869715869716) internal successors, (5731), 1443 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5731 transitions.
[2022-02-09 02:18:39,883 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5731 transitions. Word has length 25
[2022-02-09 02:18:39,883 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:39,883 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5731 transitions.
[2022-02-09 02:18:39,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:39,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5731 transitions.
[2022-02-09 02:18:39,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:39,885 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:39,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:39,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212
[2022-02-09 02:18:39,886 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:39,886 INFO L85 PathProgramCache]: Analyzing trace with hash -567601707, now seen corresponding path program 209 times
[2022-02-09 02:18:39,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:39,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070994580]
[2022-02-09 02:18:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:39,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:40,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:40,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070994580]
[2022-02-09 02:18:40,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070994580] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:40,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:40,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:40,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959255829]
[2022-02-09 02:18:40,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:40,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:40,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:40,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:40,004 INFO L87 Difference]: Start difference. First operand 1444 states and 5731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:40,121 INFO L93 Difference]: Finished difference Result 2751 states and 10183 transitions.
[2022-02-09 02:18:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:40,128 INFO L225 Difference]: With dead ends: 2751
[2022-02-09 02:18:40,128 INFO L226 Difference]: Without dead ends: 2564
[2022-02-09 02:18:40,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:40,128 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:40,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 158 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:40,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states.
[2022-02-09 02:18:40,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1468.
[2022-02-09 02:18:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.958418541240627) internal successors, (5807), 1467 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5807 transitions.
[2022-02-09 02:18:40,157 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5807 transitions. Word has length 25
[2022-02-09 02:18:40,157 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:40,157 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5807 transitions.
[2022-02-09 02:18:40,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5807 transitions.
[2022-02-09 02:18:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:40,160 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:40,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:40,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213
[2022-02-09 02:18:40,160 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1959746253, now seen corresponding path program 210 times
[2022-02-09 02:18:40,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:40,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778200804]
[2022-02-09 02:18:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:40,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:40,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:40,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778200804]
[2022-02-09 02:18:40,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778200804] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:40,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:40,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:40,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106045249]
[2022-02-09 02:18:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:40,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:40,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:40,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:40,279 INFO L87 Difference]: Start difference. First operand 1468 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:40,395 INFO L93 Difference]: Finished difference Result 2611 states and 9734 transitions.
[2022-02-09 02:18:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:40,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:40,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:40,401 INFO L225 Difference]: With dead ends: 2611
[2022-02-09 02:18:40,401 INFO L226 Difference]: Without dead ends: 2404
[2022-02-09 02:18:40,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:40,402 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:40,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 156 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:40,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states.
[2022-02-09 02:18:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1436.
[2022-02-09 02:18:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9770034843205573) internal successors, (5707), 1435 states have internal predecessors, (5707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5707 transitions.
[2022-02-09 02:18:40,428 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5707 transitions. Word has length 25
[2022-02-09 02:18:40,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:40,428 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5707 transitions.
[2022-02-09 02:18:40,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5707 transitions.
[2022-02-09 02:18:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:40,430 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:40,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:40,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214
[2022-02-09 02:18:40,430 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:40,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1655790135, now seen corresponding path program 211 times
[2022-02-09 02:18:40,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:40,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147324611]
[2022-02-09 02:18:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:40,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:40,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:40,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147324611]
[2022-02-09 02:18:40,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147324611] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:40,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:40,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:40,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058284053]
[2022-02-09 02:18:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:40,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:40,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:40,552 INFO L87 Difference]: Start difference. First operand 1436 states and 5707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:40,664 INFO L93 Difference]: Finished difference Result 2875 states and 10649 transitions.
[2022-02-09 02:18:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:40,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:40,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:40,672 INFO L225 Difference]: With dead ends: 2875
[2022-02-09 02:18:40,672 INFO L226 Difference]: Without dead ends: 2686
[2022-02-09 02:18:40,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:40,672 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:40,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 141 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states.
[2022-02-09 02:18:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1478.
[2022-02-09 02:18:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.964793500338524) internal successors, (5856), 1477 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5856 transitions.
[2022-02-09 02:18:40,703 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5856 transitions. Word has length 25
[2022-02-09 02:18:40,703 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:40,703 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5856 transitions.
[2022-02-09 02:18:40,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5856 transitions.
[2022-02-09 02:18:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:40,706 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:40,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:40,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215
[2022-02-09 02:18:40,706 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:40,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:40,706 INFO L85 PathProgramCache]: Analyzing trace with hash -387546859, now seen corresponding path program 212 times
[2022-02-09 02:18:40,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:40,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585616100]
[2022-02-09 02:18:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:40,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:40,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:40,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585616100]
[2022-02-09 02:18:40,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585616100] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:40,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:40,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:40,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610366241]
[2022-02-09 02:18:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:40,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:40,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:40,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:40,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:40,828 INFO L87 Difference]: Start difference. First operand 1478 states and 5856 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:40,949 INFO L93 Difference]: Finished difference Result 2873 states and 10614 transitions.
[2022-02-09 02:18:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:40,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:40,956 INFO L225 Difference]: With dead ends: 2873
[2022-02-09 02:18:40,956 INFO L226 Difference]: Without dead ends: 2656
[2022-02-09 02:18:40,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:40,956 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 95 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:40,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 161 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states.
[2022-02-09 02:18:40,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 1448.
[2022-02-09 02:18:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9744298548721493) internal successors, (5751), 1447 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions.
[2022-02-09 02:18:40,984 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25
[2022-02-09 02:18:40,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:40,984 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions.
[2022-02-09 02:18:40,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions.
[2022-02-09 02:18:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:40,986 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:40,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:40,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216
[2022-02-09 02:18:40,986 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash -460289515, now seen corresponding path program 213 times
[2022-02-09 02:18:40,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:40,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332400550]
[2022-02-09 02:18:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:40,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:41,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:41,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332400550]
[2022-02-09 02:18:41,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332400550] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:41,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:41,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:41,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297978510]
[2022-02-09 02:18:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:41,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:41,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:41,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:41,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:41,108 INFO L87 Difference]: Start difference. First operand 1448 states and 5751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:41,222 INFO L93 Difference]: Finished difference Result 2795 states and 10353 transitions.
[2022-02-09 02:18:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:41,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:41,228 INFO L225 Difference]: With dead ends: 2795
[2022-02-09 02:18:41,228 INFO L226 Difference]: Without dead ends: 2606
[2022-02-09 02:18:41,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:41,229 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 101 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:41,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 149 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:41,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states.
[2022-02-09 02:18:41,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472.
[2022-02-09 02:18:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9612508497620667) internal successors, (5827), 1471 states have internal predecessors, (5827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5827 transitions.
[2022-02-09 02:18:41,260 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5827 transitions. Word has length 25
[2022-02-09 02:18:41,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:41,260 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5827 transitions.
[2022-02-09 02:18:41,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5827 transitions.
[2022-02-09 02:18:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:41,263 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:41,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:41,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217
[2022-02-09 02:18:41,263 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:41,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash 95498773, now seen corresponding path program 214 times
[2022-02-09 02:18:41,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:41,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680093492]
[2022-02-09 02:18:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:41,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:41,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:41,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680093492]
[2022-02-09 02:18:41,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680093492] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:41,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:41,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:41,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296782003]
[2022-02-09 02:18:41,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:41,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:41,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:41,389 INFO L87 Difference]: Start difference. First operand 1472 states and 5827 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:41,504 INFO L93 Difference]: Finished difference Result 2653 states and 9899 transitions.
[2022-02-09 02:18:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:41,511 INFO L225 Difference]: With dead ends: 2653
[2022-02-09 02:18:41,511 INFO L226 Difference]: Without dead ends: 2454
[2022-02-09 02:18:41,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:41,511 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:41,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 147 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:41,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states.
[2022-02-09 02:18:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1448.
[2022-02-09 02:18:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9661368348306842) internal successors, (5739), 1447 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions.
[2022-02-09 02:18:41,555 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25
[2022-02-09 02:18:41,555 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:41,555 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions.
[2022-02-09 02:18:41,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions.
[2022-02-09 02:18:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:41,558 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:41,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:41,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218
[2022-02-09 02:18:41,558 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:41,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:41,558 INFO L85 PathProgramCache]: Analyzing trace with hash 522058099, now seen corresponding path program 215 times
[2022-02-09 02:18:41,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:41,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125928039]
[2022-02-09 02:18:41,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:41,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:41,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:41,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125928039]
[2022-02-09 02:18:41,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125928039] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:41,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:41,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:41,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403848171]
[2022-02-09 02:18:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:41,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:41,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:41,675 INFO L87 Difference]: Start difference. First operand 1448 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:41,782 INFO L93 Difference]: Finished difference Result 2793 states and 10336 transitions.
[2022-02-09 02:18:41,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:41,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:41,789 INFO L225 Difference]: With dead ends: 2793
[2022-02-09 02:18:41,789 INFO L226 Difference]: Without dead ends: 2606
[2022-02-09 02:18:41,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:41,789 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:41,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states.
[2022-02-09 02:18:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472.
[2022-02-09 02:18:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9530931339225015) internal successors, (5815), 1471 states have internal predecessors, (5815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5815 transitions.
[2022-02-09 02:18:41,818 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5815 transitions. Word has length 25
[2022-02-09 02:18:41,818 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:41,818 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5815 transitions.
[2022-02-09 02:18:41,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5815 transitions.
[2022-02-09 02:18:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:41,820 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:41,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:41,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219
[2022-02-09 02:18:41,820 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash 315250133, now seen corresponding path program 216 times
[2022-02-09 02:18:41,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:41,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346695302]
[2022-02-09 02:18:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:41,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:41,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:41,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346695302]
[2022-02-09 02:18:41,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346695302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:41,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:41,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:41,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435344727]
[2022-02-09 02:18:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:41,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:41,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:41,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:41,958 INFO L87 Difference]: Start difference. First operand 1472 states and 5815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:42,132 INFO L93 Difference]: Finished difference Result 2653 states and 9887 transitions.
[2022-02-09 02:18:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:42,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:42,140 INFO L225 Difference]: With dead ends: 2653
[2022-02-09 02:18:42,140 INFO L226 Difference]: Without dead ends: 2438
[2022-02-09 02:18:42,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:42,140 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 80 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:42,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 197 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states.
[2022-02-09 02:18:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1432.
[2022-02-09 02:18:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.981132075471698) internal successors, (5697), 1431 states have internal predecessors, (5697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5697 transitions.
[2022-02-09 02:18:42,178 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5697 transitions. Word has length 25
[2022-02-09 02:18:42,178 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:42,178 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5697 transitions.
[2022-02-09 02:18:42,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5697 transitions.
[2022-02-09 02:18:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:42,181 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:42,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:42,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220
[2022-02-09 02:18:42,181 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -312606951, now seen corresponding path program 217 times
[2022-02-09 02:18:42,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:42,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164369979]
[2022-02-09 02:18:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:42,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:42,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:42,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164369979]
[2022-02-09 02:18:42,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164369979] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:42,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:42,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:42,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207736737]
[2022-02-09 02:18:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:42,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:42,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:42,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:42,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:42,322 INFO L87 Difference]: Start difference. First operand 1432 states and 5697 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:42,464 INFO L93 Difference]: Finished difference Result 3154 states and 11754 transitions.
[2022-02-09 02:18:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:42,471 INFO L225 Difference]: With dead ends: 3154
[2022-02-09 02:18:42,471 INFO L226 Difference]: Without dead ends: 2965
[2022-02-09 02:18:42,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:42,471 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:42,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 178 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states.
[2022-02-09 02:18:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1492.
[2022-02-09 02:18:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 3.9738430583501008) internal successors, (5925), 1491 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5925 transitions.
[2022-02-09 02:18:42,500 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5925 transitions. Word has length 25
[2022-02-09 02:18:42,500 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:42,500 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5925 transitions.
[2022-02-09 02:18:42,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5925 transitions.
[2022-02-09 02:18:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:42,503 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:42,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:42,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221
[2022-02-09 02:18:42,503 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:42,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1939023351, now seen corresponding path program 218 times
[2022-02-09 02:18:42,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:42,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342889604]
[2022-02-09 02:18:42,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:42,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:42,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:42,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342889604]
[2022-02-09 02:18:42,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342889604] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:42,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:42,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:42,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902124688]
[2022-02-09 02:18:42,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:42,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:42,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:42,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:42,620 INFO L87 Difference]: Start difference. First operand 1492 states and 5925 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:42,742 INFO L93 Difference]: Finished difference Result 3152 states and 11719 transitions.
[2022-02-09 02:18:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:42,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:42,748 INFO L225 Difference]: With dead ends: 3152
[2022-02-09 02:18:42,748 INFO L226 Difference]: Without dead ends: 2935
[2022-02-09 02:18:42,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:42,749 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:42,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 159 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states.
[2022-02-09 02:18:42,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1462.
[2022-02-09 02:18:42,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9835728952772076) internal successors, (5820), 1461 states have internal predecessors, (5820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5820 transitions.
[2022-02-09 02:18:42,777 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5820 transitions. Word has length 25
[2022-02-09 02:18:42,777 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:42,777 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5820 transitions.
[2022-02-09 02:18:42,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5820 transitions.
[2022-02-09 02:18:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:42,779 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:42,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:42,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222
[2022-02-09 02:18:42,779 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1866280695, now seen corresponding path program 219 times
[2022-02-09 02:18:42,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:42,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650036198]
[2022-02-09 02:18:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:42,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:42,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:42,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650036198]
[2022-02-09 02:18:42,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650036198] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:42,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:42,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:42,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034495094]
[2022-02-09 02:18:42,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:42,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:42,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:42,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:42,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:42,899 INFO L87 Difference]: Start difference. First operand 1462 states and 5820 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:43,021 INFO L93 Difference]: Finished difference Result 3136 states and 11679 transitions.
[2022-02-09 02:18:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:43,030 INFO L225 Difference]: With dead ends: 3136
[2022-02-09 02:18:43,030 INFO L226 Difference]: Without dead ends: 2947
[2022-02-09 02:18:43,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:43,030 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:43,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 143 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states.
[2022-02-09 02:18:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1486.
[2022-02-09 02:18:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9703703703703703) internal successors, (5896), 1485 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5896 transitions.
[2022-02-09 02:18:43,063 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5896 transitions. Word has length 25
[2022-02-09 02:18:43,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:43,063 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5896 transitions.
[2022-02-09 02:18:43,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5896 transitions.
[2022-02-09 02:18:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:43,066 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:43,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:43,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223
[2022-02-09 02:18:43,066 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:43,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:43,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1872898313, now seen corresponding path program 220 times
[2022-02-09 02:18:43,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:43,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830355564]
[2022-02-09 02:18:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:43,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:43,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:43,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830355564]
[2022-02-09 02:18:43,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830355564] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:43,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:43,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:43,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18794220]
[2022-02-09 02:18:43,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:43,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:43,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:43,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:43,186 INFO L87 Difference]: Start difference. First operand 1486 states and 5896 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:43,304 INFO L93 Difference]: Finished difference Result 3122 states and 11610 transitions.
[2022-02-09 02:18:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:43,312 INFO L225 Difference]: With dead ends: 3122
[2022-02-09 02:18:43,313 INFO L226 Difference]: Without dead ends: 2923
[2022-02-09 02:18:43,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:43,313 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 100 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:43,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 146 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states.
[2022-02-09 02:18:43,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1462.
[2022-02-09 02:18:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.975359342915811) internal successors, (5808), 1461 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5808 transitions.
[2022-02-09 02:18:43,343 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5808 transitions. Word has length 25
[2022-02-09 02:18:43,343 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:43,343 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5808 transitions.
[2022-02-09 02:18:43,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5808 transitions.
[2022-02-09 02:18:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:43,345 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:43,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:43,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224
[2022-02-09 02:18:43,345 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1446338987, now seen corresponding path program 221 times
[2022-02-09 02:18:43,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:43,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002593204]
[2022-02-09 02:18:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:43,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:43,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:43,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002593204]
[2022-02-09 02:18:43,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002593204] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:43,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:43,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:43,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105054606]
[2022-02-09 02:18:43,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:43,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:43,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:43,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:43,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:43,468 INFO L87 Difference]: Start difference. First operand 1462 states and 5808 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:43,586 INFO L93 Difference]: Finished difference Result 3132 states and 11657 transitions.
[2022-02-09 02:18:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:43,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:43,595 INFO L225 Difference]: With dead ends: 3132
[2022-02-09 02:18:43,595 INFO L226 Difference]: Without dead ends: 2945
[2022-02-09 02:18:43,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:43,595 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:43,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 144 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states.
[2022-02-09 02:18:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1486.
[2022-02-09 02:18:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.962289562289562) internal successors, (5884), 1485 states have internal predecessors, (5884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5884 transitions.
[2022-02-09 02:18:43,628 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5884 transitions. Word has length 25
[2022-02-09 02:18:43,629 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:43,629 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5884 transitions.
[2022-02-09 02:18:43,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5884 transitions.
[2022-02-09 02:18:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:43,631 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:43,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:43,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225
[2022-02-09 02:18:43,631 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:43,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:43,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1653146953, now seen corresponding path program 222 times
[2022-02-09 02:18:43,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:43,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25912389]
[2022-02-09 02:18:43,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:43,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:43,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:43,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25912389]
[2022-02-09 02:18:43,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25912389] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:43,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:43,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:43,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064391891]
[2022-02-09 02:18:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:43,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:43,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:43,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:43,751 INFO L87 Difference]: Start difference. First operand 1486 states and 5884 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:43,864 INFO L93 Difference]: Finished difference Result 3120 states and 11593 transitions.
[2022-02-09 02:18:43,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:43,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:43,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:43,871 INFO L225 Difference]: With dead ends: 3120
[2022-02-09 02:18:43,871 INFO L226 Difference]: Without dead ends: 2909
[2022-02-09 02:18:43,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:43,872 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 107 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:43,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 133 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states.
[2022-02-09 02:18:43,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1450.
[2022-02-09 02:18:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9820565907522427) internal successors, (5770), 1449 states have internal predecessors, (5770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5770 transitions.
[2022-02-09 02:18:43,914 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5770 transitions. Word has length 25
[2022-02-09 02:18:43,914 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:43,914 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5770 transitions.
[2022-02-09 02:18:43,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5770 transitions.
[2022-02-09 02:18:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:43,917 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:43,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:43,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226
[2022-02-09 02:18:43,917 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:43,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:43,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2019005431, now seen corresponding path program 223 times
[2022-02-09 02:18:43,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:43,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514945697]
[2022-02-09 02:18:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:43,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:44,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:44,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514945697]
[2022-02-09 02:18:44,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514945697] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:44,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:44,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:44,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241678357]
[2022-02-09 02:18:44,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:44,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:44,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:44,037 INFO L87 Difference]: Start difference. First operand 1450 states and 5770 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:44,166 INFO L93 Difference]: Finished difference Result 3250 states and 12076 transitions.
[2022-02-09 02:18:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:44,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:44,174 INFO L225 Difference]: With dead ends: 3250
[2022-02-09 02:18:44,175 INFO L226 Difference]: Without dead ends: 3061
[2022-02-09 02:18:44,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:44,175 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 96 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:44,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 155 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:44,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states.
[2022-02-09 02:18:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 1519.
[2022-02-09 02:18:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.963109354413702) internal successors, (6016), 1518 states have internal predecessors, (6016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 6016 transitions.
[2022-02-09 02:18:44,212 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 6016 transitions. Word has length 25
[2022-02-09 02:18:44,212 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:44,212 INFO L470 AbstractCegarLoop]: Abstraction has 1519 states and 6016 transitions.
[2022-02-09 02:18:44,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 6016 transitions.
[2022-02-09 02:18:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:44,214 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:44,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:44,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227
[2022-02-09 02:18:44,215 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -24331563, now seen corresponding path program 224 times
[2022-02-09 02:18:44,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:44,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042537962]
[2022-02-09 02:18:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:44,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:44,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:44,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042537962]
[2022-02-09 02:18:44,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042537962] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:44,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:44,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:44,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766149576]
[2022-02-09 02:18:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:44,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:44,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:44,357 INFO L87 Difference]: Start difference. First operand 1519 states and 6016 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:44,509 INFO L93 Difference]: Finished difference Result 3248 states and 12041 transitions.
[2022-02-09 02:18:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:44,519 INFO L225 Difference]: With dead ends: 3248
[2022-02-09 02:18:44,519 INFO L226 Difference]: Without dead ends: 3031
[2022-02-09 02:18:44,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:44,520 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 124 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:44,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 141 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states.
[2022-02-09 02:18:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1489.
[2022-02-09 02:18:44,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 3.9704301075268815) internal successors, (5908), 1488 states have internal predecessors, (5908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5908 transitions.
[2022-02-09 02:18:44,562 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5908 transitions. Word has length 25
[2022-02-09 02:18:44,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:44,562 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5908 transitions.
[2022-02-09 02:18:44,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5908 transitions.
[2022-02-09 02:18:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:44,566 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:44,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:44,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228
[2022-02-09 02:18:44,566 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:44,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1157163913, now seen corresponding path program 225 times
[2022-02-09 02:18:44,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:44,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920620628]
[2022-02-09 02:18:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:44,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:44,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:44,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920620628]
[2022-02-09 02:18:44,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920620628] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:44,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:44,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:44,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114773913]
[2022-02-09 02:18:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:44,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:44,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:44,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:44,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:44,693 INFO L87 Difference]: Start difference. First operand 1489 states and 5908 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:44,819 INFO L93 Difference]: Finished difference Result 3318 states and 12295 transitions.
[2022-02-09 02:18:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:44,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:44,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:44,827 INFO L225 Difference]: With dead ends: 3318
[2022-02-09 02:18:44,828 INFO L226 Difference]: Without dead ends: 3129
[2022-02-09 02:18:44,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:44,828 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 115 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:44,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 140 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:44,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states.
[2022-02-09 02:18:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 1552.
[2022-02-09 02:18:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.9426176660219214) internal successors, (6115), 1551 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 6115 transitions.
[2022-02-09 02:18:44,863 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 6115 transitions. Word has length 25
[2022-02-09 02:18:44,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:44,863 INFO L470 AbstractCegarLoop]: Abstraction has 1552 states and 6115 transitions.
[2022-02-09 02:18:44,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 6115 transitions.
[2022-02-09 02:18:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:44,866 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:44,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:44,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229
[2022-02-09 02:18:44,866 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1712952201, now seen corresponding path program 226 times
[2022-02-09 02:18:44,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:44,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809583847]
[2022-02-09 02:18:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:44,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:44,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:44,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809583847]
[2022-02-09 02:18:44,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809583847] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:44,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:44,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:44,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320769156]
[2022-02-09 02:18:44,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:44,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:44,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:44,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:44,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:44,988 INFO L87 Difference]: Start difference. First operand 1552 states and 6115 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:45,107 INFO L93 Difference]: Finished difference Result 3351 states and 12378 transitions.
[2022-02-09 02:18:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:45,116 INFO L225 Difference]: With dead ends: 3351
[2022-02-09 02:18:45,116 INFO L226 Difference]: Without dead ends: 3066
[2022-02-09 02:18:45,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:45,116 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:45,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 146 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states.
[2022-02-09 02:18:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 1489.
[2022-02-09 02:18:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 3.9495967741935485) internal successors, (5877), 1488 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5877 transitions.
[2022-02-09 02:18:45,151 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5877 transitions. Word has length 25
[2022-02-09 02:18:45,151 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:45,151 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5877 transitions.
[2022-02-09 02:18:45,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5877 transitions.
[2022-02-09 02:18:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:45,154 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:45,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:45,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230
[2022-02-09 02:18:45,154 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:45,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash -174816299, now seen corresponding path program 227 times
[2022-02-09 02:18:45,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:45,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186860595]
[2022-02-09 02:18:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:45,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:45,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:45,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186860595]
[2022-02-09 02:18:45,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186860595] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:45,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:45,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:45,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869412389]
[2022-02-09 02:18:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:45,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:45,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:45,272 INFO L87 Difference]: Start difference. First operand 1489 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:45,387 INFO L93 Difference]: Finished difference Result 3297 states and 12203 transitions.
[2022-02-09 02:18:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:45,395 INFO L225 Difference]: With dead ends: 3297
[2022-02-09 02:18:45,395 INFO L226 Difference]: Without dead ends: 3110
[2022-02-09 02:18:45,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:45,395 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:45,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 134 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:45,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states.
[2022-02-09 02:18:45,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 1535.
[2022-02-09 02:18:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.9335071707953064) internal successors, (6034), 1534 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6034 transitions.
[2022-02-09 02:18:45,424 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6034 transitions. Word has length 25
[2022-02-09 02:18:45,424 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:45,424 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6034 transitions.
[2022-02-09 02:18:45,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6034 transitions.
[2022-02-09 02:18:45,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:45,427 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:45,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:45,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231
[2022-02-09 02:18:45,427 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:45,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:45,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1762761399, now seen corresponding path program 228 times
[2022-02-09 02:18:45,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:45,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083860377]
[2022-02-09 02:18:45,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:45,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:45,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:45,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083860377]
[2022-02-09 02:18:45,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083860377] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:45,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:45,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:45,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644827622]
[2022-02-09 02:18:45,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:45,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:45,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:45,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:45,547 INFO L87 Difference]: Start difference. First operand 1535 states and 6034 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:45,656 INFO L93 Difference]: Finished difference Result 3332 states and 12292 transitions.
[2022-02-09 02:18:45,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:45,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:45,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:45,663 INFO L225 Difference]: With dead ends: 3332
[2022-02-09 02:18:45,663 INFO L226 Difference]: Without dead ends: 3025
[2022-02-09 02:18:45,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:45,664 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:45,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 139 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states.
[2022-02-09 02:18:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 1450.
[2022-02-09 02:18:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9696342305037957) internal successors, (5752), 1449 states have internal predecessors, (5752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5752 transitions.
[2022-02-09 02:18:45,692 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5752 transitions. Word has length 25
[2022-02-09 02:18:45,692 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5752 transitions.
[2022-02-09 02:18:45,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5752 transitions.
[2022-02-09 02:18:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:45,694 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:45,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:45,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232
[2022-02-09 02:18:45,694 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:45,695 INFO L85 PathProgramCache]: Analyzing trace with hash -116976427, now seen corresponding path program 229 times
[2022-02-09 02:18:45,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:45,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649027746]
[2022-02-09 02:18:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:45,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:45,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:45,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649027746]
[2022-02-09 02:18:45,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649027746] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:45,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:45,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:45,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722854962]
[2022-02-09 02:18:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:45,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:45,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:45,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:45,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:45,817 INFO L87 Difference]: Start difference. First operand 1450 states and 5752 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:45,936 INFO L93 Difference]: Finished difference Result 3197 states and 11876 transitions.
[2022-02-09 02:18:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:45,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:45,944 INFO L225 Difference]: With dead ends: 3197
[2022-02-09 02:18:45,944 INFO L226 Difference]: Without dead ends: 3008
[2022-02-09 02:18:45,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:45,944 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:45,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states.
[2022-02-09 02:18:45,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1502.
[2022-02-09 02:18:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9626915389740174) internal successors, (5948), 1501 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions.
[2022-02-09 02:18:45,978 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25
[2022-02-09 02:18:45,978 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:45,978 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions.
[2022-02-09 02:18:45,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions.
[2022-02-09 02:18:45,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:45,981 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:45,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:45,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233
[2022-02-09 02:18:45,981 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:45,981 INFO L85 PathProgramCache]: Analyzing trace with hash 438811861, now seen corresponding path program 230 times
[2022-02-09 02:18:45,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:45,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187320004]
[2022-02-09 02:18:45,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:45,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:46,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:46,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187320004]
[2022-02-09 02:18:46,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187320004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:46,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:46,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:46,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770481670]
[2022-02-09 02:18:46,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:46,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:46,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:46,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:46,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:46,114 INFO L87 Difference]: Start difference. First operand 1502 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:46,244 INFO L93 Difference]: Finished difference Result 3183 states and 11807 transitions.
[2022-02-09 02:18:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:46,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:46,252 INFO L225 Difference]: With dead ends: 3183
[2022-02-09 02:18:46,252 INFO L226 Difference]: Without dead ends: 2984
[2022-02-09 02:18:46,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:46,252 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:46,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 162 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states.
[2022-02-09 02:18:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1478.
[2022-02-09 02:18:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.967501692620176) internal successors, (5860), 1477 states have internal predecessors, (5860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5860 transitions.
[2022-02-09 02:18:46,282 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5860 transitions. Word has length 25
[2022-02-09 02:18:46,282 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:46,282 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5860 transitions.
[2022-02-09 02:18:46,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5860 transitions.
[2022-02-09 02:18:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:46,285 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:46,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:46,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234
[2022-02-09 02:18:46,285 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:46,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:46,285 INFO L85 PathProgramCache]: Analyzing trace with hash -734499785, now seen corresponding path program 231 times
[2022-02-09 02:18:46,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:46,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344574752]
[2022-02-09 02:18:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:46,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:46,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:46,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344574752]
[2022-02-09 02:18:46,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344574752] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:46,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:46,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:46,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958305175]
[2022-02-09 02:18:46,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:46,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:46,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:46,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:46,404 INFO L87 Difference]: Start difference. First operand 1478 states and 5860 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:46,542 INFO L93 Difference]: Finished difference Result 3220 states and 11923 transitions.
[2022-02-09 02:18:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:46,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:46,550 INFO L225 Difference]: With dead ends: 3220
[2022-02-09 02:18:46,550 INFO L226 Difference]: Without dead ends: 3031
[2022-02-09 02:18:46,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:46,550 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:46,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 168 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states.
[2022-02-09 02:18:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1541.
[2022-02-09 02:18:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 3.93961038961039) internal successors, (6067), 1540 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 6067 transitions.
[2022-02-09 02:18:46,580 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 6067 transitions. Word has length 25
[2022-02-09 02:18:46,580 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:46,580 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 6067 transitions.
[2022-02-09 02:18:46,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 6067 transitions.
[2022-02-09 02:18:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:46,583 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:46,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:46,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235
[2022-02-09 02:18:46,583 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:46,584 INFO L85 PathProgramCache]: Analyzing trace with hash 549002453, now seen corresponding path program 232 times
[2022-02-09 02:18:46,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:46,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104202961]
[2022-02-09 02:18:46,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:46,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:46,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:46,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104202961]
[2022-02-09 02:18:46,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104202961] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:46,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:46,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:46,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826429023]
[2022-02-09 02:18:46,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:46,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:46,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:46,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:46,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:46,705 INFO L87 Difference]: Start difference. First operand 1541 states and 6067 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:46,823 INFO L93 Difference]: Finished difference Result 3253 states and 12006 transitions.
[2022-02-09 02:18:46,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:46,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:46,830 INFO L225 Difference]: With dead ends: 3253
[2022-02-09 02:18:46,831 INFO L226 Difference]: Without dead ends: 2968
[2022-02-09 02:18:46,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:46,831 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:46,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 139 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states.
[2022-02-09 02:18:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1478.
[2022-02-09 02:18:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.948544346648612) internal successors, (5832), 1477 states have internal predecessors, (5832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5832 transitions.
[2022-02-09 02:18:46,862 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5832 transitions. Word has length 25
[2022-02-09 02:18:46,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:46,862 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5832 transitions.
[2022-02-09 02:18:46,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5832 transitions.
[2022-02-09 02:18:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:46,865 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:46,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:46,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236
[2022-02-09 02:18:46,865 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1097788203, now seen corresponding path program 233 times
[2022-02-09 02:18:46,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:46,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568354404]
[2022-02-09 02:18:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:46,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:46,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:46,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:46,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568354404]
[2022-02-09 02:18:46,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568354404] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:46,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:46,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:46,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773499974]
[2022-02-09 02:18:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:46,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:46,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:46,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:46,985 INFO L87 Difference]: Start difference. First operand 1478 states and 5832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:47,114 INFO L93 Difference]: Finished difference Result 3169 states and 11731 transitions.
[2022-02-09 02:18:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:47,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:47,122 INFO L225 Difference]: With dead ends: 3169
[2022-02-09 02:18:47,122 INFO L226 Difference]: Without dead ends: 2994
[2022-02-09 02:18:47,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:47,122 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:47,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 157 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states.
[2022-02-09 02:18:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1518.
[2022-02-09 02:18:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 3.936717205009888) internal successors, (5972), 1517 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 5972 transitions.
[2022-02-09 02:18:47,153 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 5972 transitions. Word has length 25
[2022-02-09 02:18:47,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:47,154 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 5972 transitions.
[2022-02-09 02:18:47,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 5972 transitions.
[2022-02-09 02:18:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:47,156 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:47,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:47,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237
[2022-02-09 02:18:47,156 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash -879436617, now seen corresponding path program 234 times
[2022-02-09 02:18:47,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:47,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807142988]
[2022-02-09 02:18:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:47,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:47,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:47,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807142988]
[2022-02-09 02:18:47,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807142988] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:47,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:47,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:47,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337319023]
[2022-02-09 02:18:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:47,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:47,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:47,289 INFO L87 Difference]: Start difference. First operand 1518 states and 5972 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:47,417 INFO L93 Difference]: Finished difference Result 3121 states and 11531 transitions.
[2022-02-09 02:18:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:47,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:47,424 INFO L225 Difference]: With dead ends: 3121
[2022-02-09 02:18:47,424 INFO L226 Difference]: Without dead ends: 2831
[2022-02-09 02:18:47,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:47,424 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:47,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 170 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states.
[2022-02-09 02:18:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1450.
[2022-02-09 02:18:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9599723947550034) internal successors, (5738), 1449 states have internal predecessors, (5738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5738 transitions.
[2022-02-09 02:18:47,452 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5738 transitions. Word has length 25
[2022-02-09 02:18:47,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:47,452 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5738 transitions.
[2022-02-09 02:18:47,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5738 transitions.
[2022-02-09 02:18:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:47,454 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:47,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:47,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238
[2022-02-09 02:18:47,454 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 855420083, now seen corresponding path program 235 times
[2022-02-09 02:18:47,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:47,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060863117]
[2022-02-09 02:18:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:47,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:47,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:47,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060863117]
[2022-02-09 02:18:47,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060863117] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:47,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:47,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:47,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254481378]
[2022-02-09 02:18:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:47,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:47,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:47,576 INFO L87 Difference]: Start difference. First operand 1450 states and 5738 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:47,689 INFO L93 Difference]: Finished difference Result 3166 states and 11768 transitions.
[2022-02-09 02:18:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:47,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:47,697 INFO L225 Difference]: With dead ends: 3166
[2022-02-09 02:18:47,697 INFO L226 Difference]: Without dead ends: 2979
[2022-02-09 02:18:47,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:47,697 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:47,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states.
[2022-02-09 02:18:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 1494.
[2022-02-09 02:18:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.955793703951775) internal successors, (5906), 1493 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5906 transitions.
[2022-02-09 02:18:47,727 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5906 transitions. Word has length 25
[2022-02-09 02:18:47,727 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:47,727 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5906 transitions.
[2022-02-09 02:18:47,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5906 transitions.
[2022-02-09 02:18:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:47,730 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:47,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:47,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239
[2022-02-09 02:18:47,730 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:47,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:47,730 INFO L85 PathProgramCache]: Analyzing trace with hash 648612117, now seen corresponding path program 236 times
[2022-02-09 02:18:47,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:47,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968179339]
[2022-02-09 02:18:47,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:47,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:47,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:47,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968179339]
[2022-02-09 02:18:47,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968179339] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:47,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:47,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:47,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437136459]
[2022-02-09 02:18:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:47,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:47,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:47,849 INFO L87 Difference]: Start difference. First operand 1494 states and 5906 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:47,967 INFO L93 Difference]: Finished difference Result 3154 states and 11704 transitions.
[2022-02-09 02:18:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:47,974 INFO L225 Difference]: With dead ends: 3154
[2022-02-09 02:18:47,974 INFO L226 Difference]: Without dead ends: 2955
[2022-02-09 02:18:47,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:47,974 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:47,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 153 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states.
[2022-02-09 02:18:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1470.
[2022-02-09 02:18:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.960517358747447) internal successors, (5818), 1469 states have internal predecessors, (5818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5818 transitions.
[2022-02-09 02:18:48,004 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5818 transitions. Word has length 25
[2022-02-09 02:18:48,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:48,004 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5818 transitions.
[2022-02-09 02:18:48,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5818 transitions.
[2022-02-09 02:18:48,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:48,006 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:48,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:48,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240
[2022-02-09 02:18:48,006 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:48,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash 237896725, now seen corresponding path program 237 times
[2022-02-09 02:18:48,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:48,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937800864]
[2022-02-09 02:18:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:48,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:48,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:48,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937800864]
[2022-02-09 02:18:48,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937800864] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:48,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:48,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:48,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787218556]
[2022-02-09 02:18:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:48,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:48,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:48,128 INFO L87 Difference]: Start difference. First operand 1470 states and 5818 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:48,250 INFO L93 Difference]: Finished difference Result 3189 states and 11815 transitions.
[2022-02-09 02:18:48,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:48,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:48,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:48,257 INFO L225 Difference]: With dead ends: 3189
[2022-02-09 02:18:48,257 INFO L226 Difference]: Without dead ends: 3002
[2022-02-09 02:18:48,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:48,258 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:48,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 152 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:48,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states.
[2022-02-09 02:18:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1516.
[2022-02-09 02:18:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 3.943894389438944) internal successors, (5975), 1515 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 5975 transitions.
[2022-02-09 02:18:48,304 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 5975 transitions. Word has length 25
[2022-02-09 02:18:48,304 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:48,304 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 5975 transitions.
[2022-02-09 02:18:48,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 5975 transitions.
[2022-02-09 02:18:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:48,306 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:48,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:48,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241
[2022-02-09 02:18:48,306 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash -280202347, now seen corresponding path program 238 times
[2022-02-09 02:18:48,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:48,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678608750]
[2022-02-09 02:18:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:48,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:48,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:48,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678608750]
[2022-02-09 02:18:48,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678608750] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:48,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:48,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:48,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900312761]
[2022-02-09 02:18:48,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:48,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:48,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:48,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:48,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:48,423 INFO L87 Difference]: Start difference. First operand 1516 states and 5975 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:48,545 INFO L93 Difference]: Finished difference Result 3224 states and 11904 transitions.
[2022-02-09 02:18:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:48,552 INFO L225 Difference]: With dead ends: 3224
[2022-02-09 02:18:48,552 INFO L226 Difference]: Without dead ends: 2956
[2022-02-09 02:18:48,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:48,553 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:48,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 174 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states.
[2022-02-09 02:18:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1470.
[2022-02-09 02:18:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9469026548672566) internal successors, (5798), 1469 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5798 transitions.
[2022-02-09 02:18:48,581 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5798 transitions. Word has length 25
[2022-02-09 02:18:48,581 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:48,581 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5798 transitions.
[2022-02-09 02:18:48,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5798 transitions.
[2022-02-09 02:18:48,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:48,584 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:48,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:48,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242
[2022-02-09 02:18:48,584 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1355026569, now seen corresponding path program 239 times
[2022-02-09 02:18:48,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:48,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826228035]
[2022-02-09 02:18:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:48,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:48,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:48,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826228035]
[2022-02-09 02:18:48,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826228035] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:48,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:48,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:48,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680581158]
[2022-02-09 02:18:48,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:48,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:48,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:48,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:48,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:48,701 INFO L87 Difference]: Start difference. First operand 1470 states and 5798 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:48,812 INFO L93 Difference]: Finished difference Result 3159 states and 11692 transitions.
[2022-02-09 02:18:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:48,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:48,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:48,820 INFO L225 Difference]: With dead ends: 3159
[2022-02-09 02:18:48,820 INFO L226 Difference]: Without dead ends: 2984
[2022-02-09 02:18:48,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:48,820 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 112 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:48,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 135 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states.
[2022-02-09 02:18:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1510.
[2022-02-09 02:18:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.9350563286944995) internal successors, (5938), 1509 states have internal predecessors, (5938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5938 transitions.
[2022-02-09 02:18:48,850 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5938 transitions. Word has length 25
[2022-02-09 02:18:48,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:48,851 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5938 transitions.
[2022-02-09 02:18:48,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5938 transitions.
[2022-02-09 02:18:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:48,853 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:48,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:48,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243
[2022-02-09 02:18:48,853 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1118905301, now seen corresponding path program 240 times
[2022-02-09 02:18:48,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:48,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699915251]
[2022-02-09 02:18:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:48,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:48,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:48,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699915251]
[2022-02-09 02:18:48,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699915251] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:48,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:48,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:48,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215800863]
[2022-02-09 02:18:48,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:48,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:48,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:48,971 INFO L87 Difference]: Start difference. First operand 1510 states and 5938 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:49,092 INFO L93 Difference]: Finished difference Result 3111 states and 11492 transitions.
[2022-02-09 02:18:49,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:49,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:49,100 INFO L225 Difference]: With dead ends: 3111
[2022-02-09 02:18:49,100 INFO L226 Difference]: Without dead ends: 2803
[2022-02-09 02:18:49,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:49,100 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:49,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 171 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:49,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states.
[2022-02-09 02:18:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1424.
[2022-02-09 02:18:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9880534082923402) internal successors, (5675), 1423 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5675 transitions.
[2022-02-09 02:18:49,129 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5675 transitions. Word has length 25
[2022-02-09 02:18:49,129 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:49,129 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5675 transitions.
[2022-02-09 02:18:49,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5675 transitions.
[2022-02-09 02:18:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:49,131 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:49,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:49,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244
[2022-02-09 02:18:49,132 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 209646935, now seen corresponding path program 241 times
[2022-02-09 02:18:49,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:49,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825243817]
[2022-02-09 02:18:49,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:49,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:49,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:49,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825243817]
[2022-02-09 02:18:49,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825243817] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:49,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:49,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:49,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575533323]
[2022-02-09 02:18:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:49,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:49,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:49,253 INFO L87 Difference]: Start difference. First operand 1424 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:49,366 INFO L93 Difference]: Finished difference Result 3076 states and 11383 transitions.
[2022-02-09 02:18:49,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:49,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:49,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:49,374 INFO L225 Difference]: With dead ends: 3076
[2022-02-09 02:18:49,374 INFO L226 Difference]: Without dead ends: 2917
[2022-02-09 02:18:49,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:49,375 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 127 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:49,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 144 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:49,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states.
[2022-02-09 02:18:49,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1480.
[2022-02-09 02:18:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 3.980392156862745) internal successors, (5887), 1479 states have internal predecessors, (5887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5887 transitions.
[2022-02-09 02:18:49,408 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5887 transitions. Word has length 25
[2022-02-09 02:18:49,408 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:49,408 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5887 transitions.
[2022-02-09 02:18:49,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5887 transitions.
[2022-02-09 02:18:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:49,410 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:49,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:49,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245
[2022-02-09 02:18:49,411 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:49,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash -798651049, now seen corresponding path program 242 times
[2022-02-09 02:18:49,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:49,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478128871]
[2022-02-09 02:18:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:49,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:49,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:49,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478128871]
[2022-02-09 02:18:49,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478128871] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:49,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:49,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:49,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341782724]
[2022-02-09 02:18:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:49,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:49,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:49,535 INFO L87 Difference]: Start difference. First operand 1480 states and 5887 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:49,647 INFO L93 Difference]: Finished difference Result 3139 states and 11590 transitions.
[2022-02-09 02:18:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:49,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:49,655 INFO L225 Difference]: With dead ends: 3139
[2022-02-09 02:18:49,656 INFO L226 Difference]: Without dead ends: 2885
[2022-02-09 02:18:49,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:49,656 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:49,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 152 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:49,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states.
[2022-02-09 02:18:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1448.
[2022-02-09 02:18:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.979958534899793) internal successors, (5759), 1447 states have internal predecessors, (5759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5759 transitions.
[2022-02-09 02:18:49,687 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5759 transitions. Word has length 25
[2022-02-09 02:18:49,687 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:49,687 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5759 transitions.
[2022-02-09 02:18:49,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5759 transitions.
[2022-02-09 02:18:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:49,690 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:49,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:49,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246
[2022-02-09 02:18:49,690 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash 248261619, now seen corresponding path program 243 times
[2022-02-09 02:18:49,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:49,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977222266]
[2022-02-09 02:18:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:49,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:49,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:49,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:49,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977222266]
[2022-02-09 02:18:49,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977222266] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:49,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:49,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:49,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956997948]
[2022-02-09 02:18:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:49,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:49,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:49,811 INFO L87 Difference]: Start difference. First operand 1448 states and 5759 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:49,922 INFO L93 Difference]: Finished difference Result 3027 states and 11189 transitions.
[2022-02-09 02:18:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:49,931 INFO L225 Difference]: With dead ends: 3027
[2022-02-09 02:18:49,931 INFO L226 Difference]: Without dead ends: 2868
[2022-02-09 02:18:49,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:49,931 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 106 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:49,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 154 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states.
[2022-02-09 02:18:49,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1464.
[2022-02-09 02:18:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.969241285030759) internal successors, (5807), 1463 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5807 transitions.
[2022-02-09 02:18:49,964 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5807 transitions. Word has length 25
[2022-02-09 02:18:49,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:49,964 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5807 transitions.
[2022-02-09 02:18:49,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5807 transitions.
[2022-02-09 02:18:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:49,967 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:49,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:49,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247
[2022-02-09 02:18:49,967 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1341673131, now seen corresponding path program 244 times
[2022-02-09 02:18:49,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:49,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389126670]
[2022-02-09 02:18:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:49,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:50,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:50,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389126670]
[2022-02-09 02:18:50,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389126670] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:50,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:50,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:50,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476547767]
[2022-02-09 02:18:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:50,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:50,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:50,089 INFO L87 Difference]: Start difference. First operand 1464 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:50,212 INFO L93 Difference]: Finished difference Result 3057 states and 11282 transitions.
[2022-02-09 02:18:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:50,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:50,219 INFO L225 Difference]: With dead ends: 3057
[2022-02-09 02:18:50,219 INFO L226 Difference]: Without dead ends: 2852
[2022-02-09 02:18:50,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:50,220 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:50,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states.
[2022-02-09 02:18:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1448.
[2022-02-09 02:18:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9744298548721493) internal successors, (5751), 1447 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions.
[2022-02-09 02:18:50,248 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25
[2022-02-09 02:18:50,248 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:50,249 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions.
[2022-02-09 02:18:50,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions.
[2022-02-09 02:18:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:50,251 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:50,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:50,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248
[2022-02-09 02:18:50,251 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1979836617, now seen corresponding path program 245 times
[2022-02-09 02:18:50,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:50,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160117529]
[2022-02-09 02:18:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:50,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:50,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:50,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160117529]
[2022-02-09 02:18:50,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160117529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:50,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:50,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:50,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223038890]
[2022-02-09 02:18:50,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:50,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:50,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:50,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:50,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:50,373 INFO L87 Difference]: Start difference. First operand 1448 states and 5751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:50,507 INFO L93 Difference]: Finished difference Result 3167 states and 11687 transitions.
[2022-02-09 02:18:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:50,530 INFO L225 Difference]: With dead ends: 3167
[2022-02-09 02:18:50,531 INFO L226 Difference]: Without dead ends: 2978
[2022-02-09 02:18:50,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:50,531 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:50,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 169 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states.
[2022-02-09 02:18:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1511.
[2022-02-09 02:18:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9456953642384107) internal successors, (5958), 1510 states have internal predecessors, (5958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5958 transitions.
[2022-02-09 02:18:50,559 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5958 transitions. Word has length 25
[2022-02-09 02:18:50,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:50,560 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5958 transitions.
[2022-02-09 02:18:50,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5958 transitions.
[2022-02-09 02:18:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:50,562 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:50,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:50,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249
[2022-02-09 02:18:50,562 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:50,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1681783659, now seen corresponding path program 246 times
[2022-02-09 02:18:50,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:50,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818416612]
[2022-02-09 02:18:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:50,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:50,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:50,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818416612]
[2022-02-09 02:18:50,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818416612] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:50,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:50,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:50,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051718419]
[2022-02-09 02:18:50,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:50,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:50,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:50,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:50,682 INFO L87 Difference]: Start difference. First operand 1511 states and 5958 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:50,808 INFO L93 Difference]: Finished difference Result 3200 states and 11770 transitions.
[2022-02-09 02:18:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:50,816 INFO L225 Difference]: With dead ends: 3200
[2022-02-09 02:18:50,816 INFO L226 Difference]: Without dead ends: 2891
[2022-02-09 02:18:50,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:50,817 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:50,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 175 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states.
[2022-02-09 02:18:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1424.
[2022-02-09 02:18:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9796205200281096) internal successors, (5663), 1423 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5663 transitions.
[2022-02-09 02:18:50,847 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5663 transitions. Word has length 25
[2022-02-09 02:18:50,847 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:50,847 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5663 transitions.
[2022-02-09 02:18:50,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5663 transitions.
[2022-02-09 02:18:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:50,849 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:50,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:50,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250
[2022-02-09 02:18:50,850 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1764370955, now seen corresponding path program 247 times
[2022-02-09 02:18:50,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:50,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110388923]
[2022-02-09 02:18:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:50,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:50,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:50,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110388923]
[2022-02-09 02:18:50,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110388923] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:50,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:50,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:50,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887404315]
[2022-02-09 02:18:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:50,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:50,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:50,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:50,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:50,970 INFO L87 Difference]: Start difference. First operand 1424 states and 5663 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:51,073 INFO L93 Difference]: Finished difference Result 3043 states and 11268 transitions.
[2022-02-09 02:18:51,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:51,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:51,081 INFO L225 Difference]: With dead ends: 3043
[2022-02-09 02:18:51,081 INFO L226 Difference]: Without dead ends: 2884
[2022-02-09 02:18:51,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:51,081 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:51,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states.
[2022-02-09 02:18:51,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1472.
[2022-02-09 02:18:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9748470428280083) internal successors, (5847), 1471 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions.
[2022-02-09 02:18:51,112 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25
[2022-02-09 02:18:51,112 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:51,112 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions.
[2022-02-09 02:18:51,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions.
[2022-02-09 02:18:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:51,114 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:51,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:51,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251
[2022-02-09 02:18:51,114 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1522298357, now seen corresponding path program 248 times
[2022-02-09 02:18:51,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:51,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873776148]
[2022-02-09 02:18:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:51,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:51,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:51,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873776148]
[2022-02-09 02:18:51,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873776148] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:51,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:51,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:51,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362092246]
[2022-02-09 02:18:51,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:51,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:51,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:51,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:51,236 INFO L87 Difference]: Start difference. First operand 1472 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:51,343 INFO L93 Difference]: Finished difference Result 3106 states and 11475 transitions.
[2022-02-09 02:18:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:51,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:51,351 INFO L225 Difference]: With dead ends: 3106
[2022-02-09 02:18:51,351 INFO L226 Difference]: Without dead ends: 2852
[2022-02-09 02:18:51,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:51,351 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 110 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:51,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 156 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:51,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states.
[2022-02-09 02:18:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1440.
[2022-02-09 02:18:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.974287699791522) internal successors, (5719), 1439 states have internal predecessors, (5719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5719 transitions.
[2022-02-09 02:18:51,381 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5719 transitions. Word has length 25
[2022-02-09 02:18:51,381 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:51,381 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5719 transitions.
[2022-02-09 02:18:51,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5719 transitions.
[2022-02-09 02:18:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:51,383 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:51,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:51,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252
[2022-02-09 02:18:51,384 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:51,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash 269418903, now seen corresponding path program 249 times
[2022-02-09 02:18:51,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:51,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559416027]
[2022-02-09 02:18:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:51,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:51,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:51,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559416027]
[2022-02-09 02:18:51,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559416027] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:51,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:51,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:51,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477244412]
[2022-02-09 02:18:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:51,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:51,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:51,507 INFO L87 Difference]: Start difference. First operand 1440 states and 5719 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:51,611 INFO L93 Difference]: Finished difference Result 2988 states and 11057 transitions.
[2022-02-09 02:18:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:51,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:51,618 INFO L225 Difference]: With dead ends: 2988
[2022-02-09 02:18:51,618 INFO L226 Difference]: Without dead ends: 2829
[2022-02-09 02:18:51,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:51,618 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:51,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states.
[2022-02-09 02:18:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456.
[2022-02-09 02:18:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.963573883161512) internal successors, (5767), 1455 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5767 transitions.
[2022-02-09 02:18:51,648 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5767 transitions. Word has length 25
[2022-02-09 02:18:51,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:51,648 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5767 transitions.
[2022-02-09 02:18:51,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5767 transitions.
[2022-02-09 02:18:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:51,650 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:51,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:51,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253
[2022-02-09 02:18:51,651 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:51,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1949915543, now seen corresponding path program 250 times
[2022-02-09 02:18:51,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:51,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034845951]
[2022-02-09 02:18:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:51,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:51,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:51,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034845951]
[2022-02-09 02:18:51,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034845951] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:51,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:51,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:51,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047055281]
[2022-02-09 02:18:51,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:51,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:51,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:51,777 INFO L87 Difference]: Start difference. First operand 1456 states and 5767 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:51,897 INFO L93 Difference]: Finished difference Result 3012 states and 11133 transitions.
[2022-02-09 02:18:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:51,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:51,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:51,906 INFO L225 Difference]: With dead ends: 3012
[2022-02-09 02:18:51,906 INFO L226 Difference]: Without dead ends: 2813
[2022-02-09 02:18:51,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:51,906 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:51,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states.
[2022-02-09 02:18:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1440.
[2022-02-09 02:18:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.968728283530229) internal successors, (5711), 1439 states have internal predecessors, (5711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5711 transitions.
[2022-02-09 02:18:51,938 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5711 transitions. Word has length 25
[2022-02-09 02:18:51,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:51,938 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5711 transitions.
[2022-02-09 02:18:51,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:51,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5711 transitions.
[2022-02-09 02:18:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:51,941 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:51,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:51,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254
[2022-02-09 02:18:51,941 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash -656805481, now seen corresponding path program 251 times
[2022-02-09 02:18:51,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:51,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458046838]
[2022-02-09 02:18:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:51,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:52,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:52,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458046838]
[2022-02-09 02:18:52,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458046838] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:52,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:52,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:52,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081894867]
[2022-02-09 02:18:52,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:52,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:52,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:52,077 INFO L87 Difference]: Start difference. First operand 1440 states and 5711 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:52,199 INFO L93 Difference]: Finished difference Result 3103 states and 11480 transitions.
[2022-02-09 02:18:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:52,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:52,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:52,209 INFO L225 Difference]: With dead ends: 3103
[2022-02-09 02:18:52,209 INFO L226 Difference]: Without dead ends: 2920
[2022-02-09 02:18:52,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:52,210 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:52,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:52,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states.
[2022-02-09 02:18:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1484.
[2022-02-09 02:18:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9534726904922453) internal successors, (5863), 1483 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5863 transitions.
[2022-02-09 02:18:52,245 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5863 transitions. Word has length 25
[2022-02-09 02:18:52,245 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:52,245 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5863 transitions.
[2022-02-09 02:18:52,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5863 transitions.
[2022-02-09 02:18:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:52,248 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:52,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:52,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255
[2022-02-09 02:18:52,248 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1661137419, now seen corresponding path program 252 times
[2022-02-09 02:18:52,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:52,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363377785]
[2022-02-09 02:18:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:52,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:52,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:52,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363377785]
[2022-02-09 02:18:52,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363377785] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:52,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:52,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:52,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898400959]
[2022-02-09 02:18:52,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:52,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:52,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:52,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:52,378 INFO L87 Difference]: Start difference. First operand 1484 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:52,489 INFO L93 Difference]: Finished difference Result 3142 states and 11583 transitions.
[2022-02-09 02:18:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:52,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:52,497 INFO L225 Difference]: With dead ends: 3142
[2022-02-09 02:18:52,497 INFO L226 Difference]: Without dead ends: 2860
[2022-02-09 02:18:52,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:52,497 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:52,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:52,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states.
[2022-02-09 02:18:52,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1424.
[2022-02-09 02:18:52,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9739985945186227) internal successors, (5655), 1423 states have internal predecessors, (5655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5655 transitions.
[2022-02-09 02:18:52,526 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5655 transitions. Word has length 25
[2022-02-09 02:18:52,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:52,526 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5655 transitions.
[2022-02-09 02:18:52,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5655 transitions.
[2022-02-09 02:18:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:52,528 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:52,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:52,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256
[2022-02-09 02:18:52,529 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:52,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:52,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1069767471, now seen corresponding path program 253 times
[2022-02-09 02:18:52,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:52,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899504664]
[2022-02-09 02:18:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:52,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:52,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:52,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899504664]
[2022-02-09 02:18:52,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899504664] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:52,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:52,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:52,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741983726]
[2022-02-09 02:18:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:52,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:52,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:52,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:52,648 INFO L87 Difference]: Start difference. First operand 1424 states and 5655 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:52,762 INFO L93 Difference]: Finished difference Result 2921 states and 10804 transitions.
[2022-02-09 02:18:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:52,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:52,769 INFO L225 Difference]: With dead ends: 2921
[2022-02-09 02:18:52,769 INFO L226 Difference]: Without dead ends: 2762
[2022-02-09 02:18:52,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:52,769 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:52,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 148 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states.
[2022-02-09 02:18:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1448.
[2022-02-09 02:18:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9661368348306842) internal successors, (5739), 1447 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions.
[2022-02-09 02:18:52,797 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25
[2022-02-09 02:18:52,797 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:52,797 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions.
[2022-02-09 02:18:52,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions.
[2022-02-09 02:18:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:52,799 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:52,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:52,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257
[2022-02-09 02:18:52,799 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:52,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:52,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1635265075, now seen corresponding path program 254 times
[2022-02-09 02:18:52,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:52,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313904700]
[2022-02-09 02:18:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:52,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:52,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:52,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313904700]
[2022-02-09 02:18:52,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313904700] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:52,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:52,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:52,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446285577]
[2022-02-09 02:18:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:52,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:52,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:52,919 INFO L87 Difference]: Start difference. First operand 1448 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:53,042 INFO L93 Difference]: Finished difference Result 2951 states and 10897 transitions.
[2022-02-09 02:18:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:53,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:53,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:53,050 INFO L225 Difference]: With dead ends: 2951
[2022-02-09 02:18:53,050 INFO L226 Difference]: Without dead ends: 2746
[2022-02-09 02:18:53,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:53,051 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:53,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states.
[2022-02-09 02:18:53,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1432.
[2022-02-09 02:18:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.971348707197764) internal successors, (5683), 1431 states have internal predecessors, (5683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5683 transitions.
[2022-02-09 02:18:53,081 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5683 transitions. Word has length 25
[2022-02-09 02:18:53,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:53,081 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5683 transitions.
[2022-02-09 02:18:53,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5683 transitions.
[2022-02-09 02:18:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:53,084 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:53,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:53,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258
[2022-02-09 02:18:53,084 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:53,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1276575437, now seen corresponding path program 255 times
[2022-02-09 02:18:53,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:53,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194971309]
[2022-02-09 02:18:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:53,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:53,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:53,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194971309]
[2022-02-09 02:18:53,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194971309] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:53,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:53,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:53,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571811756]
[2022-02-09 02:18:53,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:53,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:53,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:53,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:53,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:53,206 INFO L87 Difference]: Start difference. First operand 1432 states and 5683 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:53,317 INFO L93 Difference]: Finished difference Result 2915 states and 10779 transitions.
[2022-02-09 02:18:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:53,324 INFO L225 Difference]: With dead ends: 2915
[2022-02-09 02:18:53,325 INFO L226 Difference]: Without dead ends: 2756
[2022-02-09 02:18:53,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:53,325 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:53,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 160 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states.
[2022-02-09 02:18:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1448.
[2022-02-09 02:18:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9606081548030407) internal successors, (5731), 1447 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5731 transitions.
[2022-02-09 02:18:53,355 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5731 transitions. Word has length 25
[2022-02-09 02:18:53,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:53,355 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5731 transitions.
[2022-02-09 02:18:53,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5731 transitions.
[2022-02-09 02:18:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:53,357 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:53,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:53,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259
[2022-02-09 02:18:53,357 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash 403921203, now seen corresponding path program 256 times
[2022-02-09 02:18:53,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:53,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305689794]
[2022-02-09 02:18:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:53,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:53,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:53,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305689794]
[2022-02-09 02:18:53,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305689794] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:53,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:53,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:53,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522936125]
[2022-02-09 02:18:53,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:53,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:53,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:53,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:53,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:53,498 INFO L87 Difference]: Start difference. First operand 1448 states and 5731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:53,628 INFO L93 Difference]: Finished difference Result 2939 states and 10855 transitions.
[2022-02-09 02:18:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:53,636 INFO L225 Difference]: With dead ends: 2939
[2022-02-09 02:18:53,636 INFO L226 Difference]: Without dead ends: 2740
[2022-02-09 02:18:53,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:53,636 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:53,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:53,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states.
[2022-02-09 02:18:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1432.
[2022-02-09 02:18:53,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.96575821104123) internal successors, (5675), 1431 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions.
[2022-02-09 02:18:53,667 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25
[2022-02-09 02:18:53,667 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:53,667 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions.
[2022-02-09 02:18:53,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions.
[2022-02-09 02:18:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:53,670 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:53,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:53,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260
[2022-02-09 02:18:53,670 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:53,670 INFO L85 PathProgramCache]: Analyzing trace with hash 140586517, now seen corresponding path program 257 times
[2022-02-09 02:18:53,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:53,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516115001]
[2022-02-09 02:18:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:53,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:53,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:53,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516115001]
[2022-02-09 02:18:53,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516115001] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:53,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:53,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:53,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117247583]
[2022-02-09 02:18:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:53,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:53,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:53,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:53,800 INFO L87 Difference]: Start difference. First operand 1432 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:53,923 INFO L93 Difference]: Finished difference Result 2987 states and 11041 transitions.
[2022-02-09 02:18:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:53,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:53,930 INFO L225 Difference]: With dead ends: 2987
[2022-02-09 02:18:53,930 INFO L226 Difference]: Without dead ends: 2798
[2022-02-09 02:18:53,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:53,930 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:53,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states.
[2022-02-09 02:18:53,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1460.
[2022-02-09 02:18:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.949965729952022) internal successors, (5763), 1459 states have internal predecessors, (5763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5763 transitions.
[2022-02-09 02:18:53,960 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5763 transitions. Word has length 25
[2022-02-09 02:18:53,960 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:53,960 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5763 transitions.
[2022-02-09 02:18:53,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5763 transitions.
[2022-02-09 02:18:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:53,962 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:53,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:53,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261
[2022-02-09 02:18:53,963 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:53,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:53,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1251558029, now seen corresponding path program 258 times
[2022-02-09 02:18:53,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:53,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189799800]
[2022-02-09 02:18:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:53,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:54,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:54,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189799800]
[2022-02-09 02:18:54,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189799800] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:54,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:54,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:54,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462583547]
[2022-02-09 02:18:54,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:54,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:54,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:54,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:54,081 INFO L87 Difference]: Start difference. First operand 1460 states and 5763 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:54,212 INFO L93 Difference]: Finished difference Result 2981 states and 10996 transitions.
[2022-02-09 02:18:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:54,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:54,221 INFO L225 Difference]: With dead ends: 2981
[2022-02-09 02:18:54,221 INFO L226 Difference]: Without dead ends: 2762
[2022-02-09 02:18:54,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:54,221 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:54,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:54,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states.
[2022-02-09 02:18:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1424.
[2022-02-09 02:18:54,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.971187631763879) internal successors, (5651), 1423 states have internal predecessors, (5651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5651 transitions.
[2022-02-09 02:18:54,254 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5651 transitions. Word has length 25
[2022-02-09 02:18:54,254 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:54,254 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5651 transitions.
[2022-02-09 02:18:54,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5651 transitions.
[2022-02-09 02:18:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:54,256 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:54,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:54,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262
[2022-02-09 02:18:54,256 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1045799799, now seen corresponding path program 259 times
[2022-02-09 02:18:54,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:54,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576915212]
[2022-02-09 02:18:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:54,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:54,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:54,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576915212]
[2022-02-09 02:18:54,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576915212] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:54,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:54,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:54,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159117574]
[2022-02-09 02:18:54,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:54,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:54,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:54,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:54,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:54,380 INFO L87 Difference]: Start difference. First operand 1424 states and 5651 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:54,508 INFO L93 Difference]: Finished difference Result 3147 states and 11659 transitions.
[2022-02-09 02:18:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:54,515 INFO L225 Difference]: With dead ends: 3147
[2022-02-09 02:18:54,515 INFO L226 Difference]: Without dead ends: 2958
[2022-02-09 02:18:54,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:54,516 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:54,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:54,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states.
[2022-02-09 02:18:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1482.
[2022-02-09 02:18:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.962187711006077) internal successors, (5868), 1481 states have internal predecessors, (5868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5868 transitions.
[2022-02-09 02:18:54,547 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5868 transitions. Word has length 25
[2022-02-09 02:18:54,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:54,547 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5868 transitions.
[2022-02-09 02:18:54,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5868 transitions.
[2022-02-09 02:18:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:54,550 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:54,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:54,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263
[2022-02-09 02:18:54,550 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:54,550 INFO L85 PathProgramCache]: Analyzing trace with hash -346344747, now seen corresponding path program 260 times
[2022-02-09 02:18:54,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:54,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986899242]
[2022-02-09 02:18:54,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:54,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:54,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:54,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:54,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986899242]
[2022-02-09 02:18:54,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986899242] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:54,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:54,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:54,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268272455]
[2022-02-09 02:18:54,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:54,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:54,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:54,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:54,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:54,672 INFO L87 Difference]: Start difference. First operand 1482 states and 5868 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:54,788 INFO L93 Difference]: Finished difference Result 3141 states and 11614 transitions.
[2022-02-09 02:18:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:54,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:54,796 INFO L225 Difference]: With dead ends: 3141
[2022-02-09 02:18:54,796 INFO L226 Difference]: Without dead ends: 2930
[2022-02-09 02:18:54,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:54,796 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:54,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 144 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states.
[2022-02-09 02:18:54,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1454.
[2022-02-09 02:18:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.9683413626978665) internal successors, (5766), 1453 states have internal predecessors, (5766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5766 transitions.
[2022-02-09 02:18:54,827 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5766 transitions. Word has length 25
[2022-02-09 02:18:54,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:54,827 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5766 transitions.
[2022-02-09 02:18:54,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5766 transitions.
[2022-02-09 02:18:54,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:54,830 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:54,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:54,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264
[2022-02-09 02:18:54,830 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2044518315, now seen corresponding path program 261 times
[2022-02-09 02:18:54,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:54,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197142305]
[2022-02-09 02:18:54,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:54,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:54,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:54,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197142305]
[2022-02-09 02:18:54,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197142305] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:54,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:54,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:54,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585557763]
[2022-02-09 02:18:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:54,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:54,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:54,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:54,956 INFO L87 Difference]: Start difference. First operand 1454 states and 5766 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:55,088 INFO L93 Difference]: Finished difference Result 3221 states and 11898 transitions.
[2022-02-09 02:18:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:55,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:55,097 INFO L225 Difference]: With dead ends: 3221
[2022-02-09 02:18:55,097 INFO L226 Difference]: Without dead ends: 3032
[2022-02-09 02:18:55,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:55,097 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:55,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states.
[2022-02-09 02:18:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1517.
[2022-02-09 02:18:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.9399736147757256) internal successors, (5973), 1516 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 5973 transitions.
[2022-02-09 02:18:55,129 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 5973 transitions. Word has length 25
[2022-02-09 02:18:55,129 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:55,130 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 5973 transitions.
[2022-02-09 02:18:55,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 5973 transitions.
[2022-02-09 02:18:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:55,132 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:55,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:55,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265
[2022-02-09 02:18:55,132 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1312436011, now seen corresponding path program 262 times
[2022-02-09 02:18:55,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:55,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922821895]
[2022-02-09 02:18:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:55,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:55,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:55,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922821895]
[2022-02-09 02:18:55,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922821895] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:55,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:55,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:55,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284616167]
[2022-02-09 02:18:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:55,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:55,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:55,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:55,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:55,256 INFO L87 Difference]: Start difference. First operand 1517 states and 5973 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:55,365 INFO L93 Difference]: Finished difference Result 3254 states and 11981 transitions.
[2022-02-09 02:18:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:55,372 INFO L225 Difference]: With dead ends: 3254
[2022-02-09 02:18:55,372 INFO L226 Difference]: Without dead ends: 2969
[2022-02-09 02:18:55,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:55,373 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:55,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states.
[2022-02-09 02:18:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1454.
[2022-02-09 02:18:55,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.94769442532691) internal successors, (5736), 1453 states have internal predecessors, (5736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5736 transitions.
[2022-02-09 02:18:55,405 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5736 transitions. Word has length 25
[2022-02-09 02:18:55,405 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:55,405 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5736 transitions.
[2022-02-09 02:18:55,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5736 transitions.
[2022-02-09 02:18:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:55,408 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:55,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:55,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266
[2022-02-09 02:18:55,408 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1680260941, now seen corresponding path program 263 times
[2022-02-09 02:18:55,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:55,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199089149]
[2022-02-09 02:18:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:55,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:55,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:55,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199089149]
[2022-02-09 02:18:55,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199089149] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:55,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:55,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:55,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041023241]
[2022-02-09 02:18:55,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:55,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:55,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:55,528 INFO L87 Difference]: Start difference. First operand 1454 states and 5736 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:55,641 INFO L93 Difference]: Finished difference Result 3190 states and 11776 transitions.
[2022-02-09 02:18:55,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:55,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:55,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:55,648 INFO L225 Difference]: With dead ends: 3190
[2022-02-09 02:18:55,648 INFO L226 Difference]: Without dead ends: 3007
[2022-02-09 02:18:55,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:55,649 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:55,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states.
[2022-02-09 02:18:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 1498.
[2022-02-09 02:18:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.933199732798931) internal successors, (5888), 1497 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5888 transitions.
[2022-02-09 02:18:55,678 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5888 transitions. Word has length 25
[2022-02-09 02:18:55,678 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:55,678 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5888 transitions.
[2022-02-09 02:18:55,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5888 transitions.
[2022-02-09 02:18:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:55,681 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:55,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:55,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267
[2022-02-09 02:18:55,681 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:55,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:55,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1545187349, now seen corresponding path program 264 times
[2022-02-09 02:18:55,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:55,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261462948]
[2022-02-09 02:18:55,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:55,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:55,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:55,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261462948]
[2022-02-09 02:18:55,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261462948] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:55,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:55,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:55,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084801497]
[2022-02-09 02:18:55,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:55,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:55,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:55,800 INFO L87 Difference]: Start difference. First operand 1498 states and 5888 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:55,913 INFO L93 Difference]: Finished difference Result 3229 states and 11879 transitions.
[2022-02-09 02:18:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:55,921 INFO L225 Difference]: With dead ends: 3229
[2022-02-09 02:18:55,921 INFO L226 Difference]: Without dead ends: 2921
[2022-02-09 02:18:55,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:55,921 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:55,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 155 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:55,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states.
[2022-02-09 02:18:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1412.
[2022-02-09 02:18:55,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9780297661233166) internal successors, (5613), 1411 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5613 transitions.
[2022-02-09 02:18:55,952 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5613 transitions. Word has length 25
[2022-02-09 02:18:55,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:55,952 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5613 transitions.
[2022-02-09 02:18:55,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5613 transitions.
[2022-02-09 02:18:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:55,954 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:55,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:55,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268
[2022-02-09 02:18:55,954 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1233542709, now seen corresponding path program 265 times
[2022-02-09 02:18:55,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:55,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949313748]
[2022-02-09 02:18:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:55,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:56,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:56,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949313748]
[2022-02-09 02:18:56,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949313748] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:56,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:56,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:56,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241054913]
[2022-02-09 02:18:56,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:56,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:56,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:56,084 INFO L87 Difference]: Start difference. First operand 1412 states and 5613 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:56,193 INFO L93 Difference]: Finished difference Result 3022 states and 11152 transitions.
[2022-02-09 02:18:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:56,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:56,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:56,200 INFO L225 Difference]: With dead ends: 3022
[2022-02-09 02:18:56,200 INFO L226 Difference]: Without dead ends: 2863
[2022-02-09 02:18:56,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:56,200 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:56,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states.
[2022-02-09 02:18:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1444.
[2022-02-09 02:18:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9674289674289676) internal successors, (5725), 1443 states have internal predecessors, (5725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5725 transitions.
[2022-02-09 02:18:56,229 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5725 transitions. Word has length 25
[2022-02-09 02:18:56,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:56,230 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5725 transitions.
[2022-02-09 02:18:56,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5725 transitions.
[2022-02-09 02:18:56,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:56,232 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:56,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:56,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269
[2022-02-09 02:18:56,232 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash 225244725, now seen corresponding path program 266 times
[2022-02-09 02:18:56,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:56,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758873744]
[2022-02-09 02:18:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:56,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:56,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:56,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758873744]
[2022-02-09 02:18:56,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758873744] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:56,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:56,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:56,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856911465]
[2022-02-09 02:18:56,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:56,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:56,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:56,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:56,357 INFO L87 Difference]: Start difference. First operand 1444 states and 5725 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:56,471 INFO L93 Difference]: Finished difference Result 3085 states and 11359 transitions.
[2022-02-09 02:18:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:56,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:56,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:56,478 INFO L225 Difference]: With dead ends: 3085
[2022-02-09 02:18:56,478 INFO L226 Difference]: Without dead ends: 2831
[2022-02-09 02:18:56,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:56,479 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 113 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:56,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 153 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states.
[2022-02-09 02:18:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1412.
[2022-02-09 02:18:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.966690290574061) internal successors, (5597), 1411 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5597 transitions.
[2022-02-09 02:18:56,512 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5597 transitions. Word has length 25
[2022-02-09 02:18:56,512 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:56,512 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5597 transitions.
[2022-02-09 02:18:56,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5597 transitions.
[2022-02-09 02:18:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:56,514 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:56,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:56,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270
[2022-02-09 02:18:56,514 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:56,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1272157393, now seen corresponding path program 267 times
[2022-02-09 02:18:56,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:56,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403762286]
[2022-02-09 02:18:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:56,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:56,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:56,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403762286]
[2022-02-09 02:18:56,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403762286] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:56,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:56,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:56,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807456185]
[2022-02-09 02:18:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:56,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:56,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:56,640 INFO L87 Difference]: Start difference. First operand 1412 states and 5597 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:56,750 INFO L93 Difference]: Finished difference Result 2973 states and 10958 transitions.
[2022-02-09 02:18:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:56,757 INFO L225 Difference]: With dead ends: 2973
[2022-02-09 02:18:56,758 INFO L226 Difference]: Without dead ends: 2814
[2022-02-09 02:18:56,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:56,758 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:56,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 154 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states.
[2022-02-09 02:18:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 1428.
[2022-02-09 02:18:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 3.955851436580238) internal successors, (5645), 1427 states have internal predecessors, (5645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5645 transitions.
[2022-02-09 02:18:56,787 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5645 transitions. Word has length 25
[2022-02-09 02:18:56,787 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:56,787 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5645 transitions.
[2022-02-09 02:18:56,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5645 transitions.
[2022-02-09 02:18:56,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:56,789 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:56,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:56,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271
[2022-02-09 02:18:56,790 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash -317777357, now seen corresponding path program 268 times
[2022-02-09 02:18:56,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:56,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625435383]
[2022-02-09 02:18:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:56,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:56,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:56,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625435383]
[2022-02-09 02:18:56,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625435383] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:56,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:56,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:56,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453947301]
[2022-02-09 02:18:56,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:56,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:56,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:56,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:56,939 INFO L87 Difference]: Start difference. First operand 1428 states and 5645 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:57,058 INFO L93 Difference]: Finished difference Result 3003 states and 11051 transitions.
[2022-02-09 02:18:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:57,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:57,066 INFO L225 Difference]: With dead ends: 3003
[2022-02-09 02:18:57,066 INFO L226 Difference]: Without dead ends: 2798
[2022-02-09 02:18:57,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:57,066 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:57,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states.
[2022-02-09 02:18:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1412.
[2022-02-09 02:18:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.961020552799433) internal successors, (5589), 1411 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5589 transitions.
[2022-02-09 02:18:57,095 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5589 transitions. Word has length 25
[2022-02-09 02:18:57,095 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:57,095 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5589 transitions.
[2022-02-09 02:18:57,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5589 transitions.
[2022-02-09 02:18:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:57,097 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:57,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:57,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272
[2022-02-09 02:18:57,097 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash -955940843, now seen corresponding path program 269 times
[2022-02-09 02:18:57,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:57,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891841850]
[2022-02-09 02:18:57,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:57,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:57,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:57,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891841850]
[2022-02-09 02:18:57,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891841850] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:57,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:57,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:57,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339497193]
[2022-02-09 02:18:57,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:57,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:57,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:57,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:57,236 INFO L87 Difference]: Start difference. First operand 1412 states and 5589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:57,371 INFO L93 Difference]: Finished difference Result 3113 states and 11456 transitions.
[2022-02-09 02:18:57,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:57,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:57,379 INFO L225 Difference]: With dead ends: 3113
[2022-02-09 02:18:57,379 INFO L226 Difference]: Without dead ends: 2924
[2022-02-09 02:18:57,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:57,379 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:57,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 154 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states.
[2022-02-09 02:18:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1475.
[2022-02-09 02:18:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 3.932157394843962) internal successors, (5796), 1474 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 5796 transitions.
[2022-02-09 02:18:57,409 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 5796 transitions. Word has length 25
[2022-02-09 02:18:57,409 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:57,409 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 5796 transitions.
[2022-02-09 02:18:57,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 5796 transitions.
[2022-02-09 02:18:57,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:57,412 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:57,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:57,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273
[2022-02-09 02:18:57,412 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash -657887885, now seen corresponding path program 270 times
[2022-02-09 02:18:57,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:57,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958628785]
[2022-02-09 02:18:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:57,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:57,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:57,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:57,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958628785]
[2022-02-09 02:18:57,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958628785] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:57,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:57,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:57,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707067592]
[2022-02-09 02:18:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:57,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:57,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:57,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:57,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:57,543 INFO L87 Difference]: Start difference. First operand 1475 states and 5796 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:57,647 INFO L93 Difference]: Finished difference Result 3146 states and 11539 transitions.
[2022-02-09 02:18:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:57,654 INFO L225 Difference]: With dead ends: 3146
[2022-02-09 02:18:57,654 INFO L226 Difference]: Without dead ends: 2837
[2022-02-09 02:18:57,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:57,654 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:57,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 141 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states.
[2022-02-09 02:18:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1388.
[2022-02-09 02:18:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.966113914924297) internal successors, (5501), 1387 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5501 transitions.
[2022-02-09 02:18:57,680 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5501 transitions. Word has length 25
[2022-02-09 02:18:57,680 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:57,680 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5501 transitions.
[2022-02-09 02:18:57,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5501 transitions.
[2022-02-09 02:18:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:57,682 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:57,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:57,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274
[2022-02-09 02:18:57,682 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1979982219, now seen corresponding path program 271 times
[2022-02-09 02:18:57,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:57,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060681179]
[2022-02-09 02:18:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:57,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:57,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:57,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060681179]
[2022-02-09 02:18:57,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060681179] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:57,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:57,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:57,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085412591]
[2022-02-09 02:18:57,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:57,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:57,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:57,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:57,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:57,799 INFO L87 Difference]: Start difference. First operand 1388 states and 5501 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:57,905 INFO L93 Difference]: Finished difference Result 2945 states and 10865 transitions.
[2022-02-09 02:18:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:57,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:57,911 INFO L225 Difference]: With dead ends: 2945
[2022-02-09 02:18:57,911 INFO L226 Difference]: Without dead ends: 2786
[2022-02-09 02:18:57,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:57,912 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 111 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:57,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 154 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states.
[2022-02-09 02:18:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1436.
[2022-02-09 02:18:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.961672473867596) internal successors, (5685), 1435 states have internal predecessors, (5685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5685 transitions.
[2022-02-09 02:18:57,940 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5685 transitions. Word has length 25
[2022-02-09 02:18:57,940 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:57,940 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5685 transitions.
[2022-02-09 02:18:57,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5685 transitions.
[2022-02-09 02:18:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:57,942 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:57,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:57,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275
[2022-02-09 02:18:57,942 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:57,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:57,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1306687093, now seen corresponding path program 272 times
[2022-02-09 02:18:57,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:57,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987094731]
[2022-02-09 02:18:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:57,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:58,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:58,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987094731]
[2022-02-09 02:18:58,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987094731] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:58,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:58,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:58,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056898388]
[2022-02-09 02:18:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:58,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:58,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:58,063 INFO L87 Difference]: Start difference. First operand 1436 states and 5685 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:58,167 INFO L93 Difference]: Finished difference Result 3008 states and 11072 transitions.
[2022-02-09 02:18:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:58,174 INFO L225 Difference]: With dead ends: 3008
[2022-02-09 02:18:58,174 INFO L226 Difference]: Without dead ends: 2754
[2022-02-09 02:18:58,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:58,175 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 113 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:58,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 146 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:58,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states.
[2022-02-09 02:18:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1404.
[2022-02-09 02:18:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9607982893799) internal successors, (5557), 1403 states have internal predecessors, (5557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5557 transitions.
[2022-02-09 02:18:58,202 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5557 transitions. Word has length 25
[2022-02-09 02:18:58,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:58,202 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5557 transitions.
[2022-02-09 02:18:58,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5557 transitions.
[2022-02-09 02:18:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:58,204 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:58,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:58,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276
[2022-02-09 02:18:58,205 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1098563991, now seen corresponding path program 273 times
[2022-02-09 02:18:58,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:58,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840513069]
[2022-02-09 02:18:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:58,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:58,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:58,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840513069]
[2022-02-09 02:18:58,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840513069] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:58,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:58,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:58,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124726458]
[2022-02-09 02:18:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:58,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:58,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:58,326 INFO L87 Difference]: Start difference. First operand 1404 states and 5557 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:58,429 INFO L93 Difference]: Finished difference Result 2850 states and 10514 transitions.
[2022-02-09 02:18:58,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:58,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:58,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:58,436 INFO L225 Difference]: With dead ends: 2850
[2022-02-09 02:18:58,437 INFO L226 Difference]: Without dead ends: 2691
[2022-02-09 02:18:58,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:58,437 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:58,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states.
[2022-02-09 02:18:58,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 1420.
[2022-02-09 02:18:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9499647639182522) internal successors, (5605), 1419 states have internal predecessors, (5605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5605 transitions.
[2022-02-09 02:18:58,466 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5605 transitions. Word has length 25
[2022-02-09 02:18:58,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:58,466 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5605 transitions.
[2022-02-09 02:18:58,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5605 transitions.
[2022-02-09 02:18:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:58,468 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:58,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:58,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277
[2022-02-09 02:18:58,469 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash -843708009, now seen corresponding path program 274 times
[2022-02-09 02:18:58,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:58,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548043149]
[2022-02-09 02:18:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:58,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:58,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:58,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548043149]
[2022-02-09 02:18:58,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548043149] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:58,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:58,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:58,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12462868]
[2022-02-09 02:18:58,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:58,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:58,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:58,593 INFO L87 Difference]: Start difference. First operand 1420 states and 5605 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:58,702 INFO L93 Difference]: Finished difference Result 2738 states and 10177 transitions.
[2022-02-09 02:18:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:58,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:58,707 INFO L225 Difference]: With dead ends: 2738
[2022-02-09 02:18:58,707 INFO L226 Difference]: Without dead ends: 2547
[2022-02-09 02:18:58,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:58,707 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:58,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states.
[2022-02-09 02:18:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 1404.
[2022-02-09 02:18:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9550962223806128) internal successors, (5549), 1403 states have internal predecessors, (5549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5549 transitions.
[2022-02-09 02:18:58,731 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5549 transitions. Word has length 25
[2022-02-09 02:18:58,732 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:58,732 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5549 transitions.
[2022-02-09 02:18:58,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5549 transitions.
[2022-02-09 02:18:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:58,734 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:58,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:58,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278
[2022-02-09 02:18:58,734 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:58,734 INFO L85 PathProgramCache]: Analyzing trace with hash 844538263, now seen corresponding path program 275 times
[2022-02-09 02:18:58,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:58,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901648843]
[2022-02-09 02:18:58,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:58,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:58,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:58,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901648843]
[2022-02-09 02:18:58,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901648843] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:58,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:58,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:58,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469377779]
[2022-02-09 02:18:58,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:58,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:58,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:58,854 INFO L87 Difference]: Start difference. First operand 1404 states and 5549 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:58,980 INFO L93 Difference]: Finished difference Result 2985 states and 11005 transitions.
[2022-02-09 02:18:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:58,987 INFO L225 Difference]: With dead ends: 2985
[2022-02-09 02:18:58,987 INFO L226 Difference]: Without dead ends: 2810
[2022-02-09 02:18:58,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:58,987 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:58,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 159 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-02-09 02:18:59,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1444.
[2022-02-09 02:18:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9424809424809424) internal successors, (5689), 1443 states have internal predecessors, (5689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5689 transitions.
[2022-02-09 02:18:59,013 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5689 transitions. Word has length 25
[2022-02-09 02:18:59,013 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:59,013 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5689 transitions.
[2022-02-09 02:18:59,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5689 transitions.
[2022-02-09 02:18:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:59,016 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:59,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:59,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279
[2022-02-09 02:18:59,016 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash -810986123, now seen corresponding path program 276 times
[2022-02-09 02:18:59,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:59,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946310701]
[2022-02-09 02:18:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:59,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:59,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:59,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946310701]
[2022-02-09 02:18:59,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946310701] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:59,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:59,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:59,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893123226]
[2022-02-09 02:18:59,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:59,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:59,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:59,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:59,138 INFO L87 Difference]: Start difference. First operand 1444 states and 5689 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:59,238 INFO L93 Difference]: Finished difference Result 2937 states and 10805 transitions.
[2022-02-09 02:18:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:59,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:59,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:59,245 INFO L225 Difference]: With dead ends: 2937
[2022-02-09 02:18:59,245 INFO L226 Difference]: Without dead ends: 2659
[2022-02-09 02:18:59,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:59,246 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:59,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 134 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states.
[2022-02-09 02:18:59,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 1388.
[2022-02-09 02:18:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9603460706560925) internal successors, (5493), 1387 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5493 transitions.
[2022-02-09 02:18:59,272 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5493 transitions. Word has length 25
[2022-02-09 02:18:59,272 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:59,272 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5493 transitions.
[2022-02-09 02:18:59,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5493 transitions.
[2022-02-09 02:18:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:59,274 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:59,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:59,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280
[2022-02-09 02:18:59,275 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1047248209, now seen corresponding path program 277 times
[2022-02-09 02:18:59,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:59,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100089886]
[2022-02-09 02:18:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:59,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:59,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:59,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100089886]
[2022-02-09 02:18:59,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100089886] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:59,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:59,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:59,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529696985]
[2022-02-09 02:18:59,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:59,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:59,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:59,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:59,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:59,400 INFO L87 Difference]: Start difference. First operand 1388 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:59,516 INFO L93 Difference]: Finished difference Result 2839 states and 10465 transitions.
[2022-02-09 02:18:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:59,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:59,522 INFO L225 Difference]: With dead ends: 2839
[2022-02-09 02:18:59,523 INFO L226 Difference]: Without dead ends: 2680
[2022-02-09 02:18:59,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:59,523 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:59,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 153 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states.
[2022-02-09 02:18:59,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1412.
[2022-02-09 02:18:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.952515946137491) internal successors, (5577), 1411 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5577 transitions.
[2022-02-09 02:18:59,551 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5577 transitions. Word has length 25
[2022-02-09 02:18:59,551 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:59,551 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5577 transitions.
[2022-02-09 02:18:59,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5577 transitions.
[2022-02-09 02:18:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:59,554 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:59,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:59,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281
[2022-02-09 02:18:59,554 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:59,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -542686541, now seen corresponding path program 278 times
[2022-02-09 02:18:59,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:59,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962292649]
[2022-02-09 02:18:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:59,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:59,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:59,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962292649]
[2022-02-09 02:18:59,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962292649] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:59,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:59,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:59,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113736408]
[2022-02-09 02:18:59,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:59,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:59,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:59,674 INFO L87 Difference]: Start difference. First operand 1412 states and 5577 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:18:59,796 INFO L93 Difference]: Finished difference Result 2869 states and 10558 transitions.
[2022-02-09 02:18:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:18:59,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:18:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:18:59,803 INFO L225 Difference]: With dead ends: 2869
[2022-02-09 02:18:59,803 INFO L226 Difference]: Without dead ends: 2664
[2022-02-09 02:18:59,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:18:59,803 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 118 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:18:59,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:18:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states.
[2022-02-09 02:18:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1396.
[2022-02-09 02:18:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 3.957706093189964) internal successors, (5521), 1395 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5521 transitions.
[2022-02-09 02:18:59,830 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5521 transitions. Word has length 25
[2022-02-09 02:18:59,830 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:18:59,831 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5521 transitions.
[2022-02-09 02:18:59,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:18:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5521 transitions.
[2022-02-09 02:18:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:18:59,834 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:18:59,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:18:59,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282
[2022-02-09 02:18:59,834 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:18:59,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:18:59,835 INFO L85 PathProgramCache]: Analyzing trace with hash -447430349, now seen corresponding path program 279 times
[2022-02-09 02:18:59,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:18:59,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200764214]
[2022-02-09 02:18:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:18:59,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:18:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:18:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:18:59,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:18:59,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200764214]
[2022-02-09 02:18:59,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200764214] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:18:59,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:18:59,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:18:59,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252041548]
[2022-02-09 02:18:59,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:18:59,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:18:59,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:18:59,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:18:59,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:18:59,958 INFO L87 Difference]: Start difference. First operand 1396 states and 5521 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:00,069 INFO L93 Difference]: Finished difference Result 2793 states and 10300 transitions.
[2022-02-09 02:19:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:00,076 INFO L225 Difference]: With dead ends: 2793
[2022-02-09 02:19:00,076 INFO L226 Difference]: Without dead ends: 2634
[2022-02-09 02:19:00,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:00,077 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:00,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states.
[2022-02-09 02:19:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1412.
[2022-02-09 02:19:00,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9468462083628633) internal successors, (5569), 1411 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5569 transitions.
[2022-02-09 02:19:00,103 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5569 transitions. Word has length 25
[2022-02-09 02:19:00,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:00,104 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5569 transitions.
[2022-02-09 02:19:00,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5569 transitions.
[2022-02-09 02:19:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:00,106 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:00,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:00,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283
[2022-02-09 02:19:00,106 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1905264947, now seen corresponding path program 280 times
[2022-02-09 02:19:00,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:00,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149689462]
[2022-02-09 02:19:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:00,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:00,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:00,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149689462]
[2022-02-09 02:19:00,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149689462] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:00,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:00,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:00,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760968916]
[2022-02-09 02:19:00,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:00,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:00,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:00,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:00,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:00,229 INFO L87 Difference]: Start difference. First operand 1412 states and 5569 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:00,337 INFO L93 Difference]: Finished difference Result 2681 states and 9963 transitions.
[2022-02-09 02:19:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:00,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:00,344 INFO L225 Difference]: With dead ends: 2681
[2022-02-09 02:19:00,344 INFO L226 Difference]: Without dead ends: 2490
[2022-02-09 02:19:00,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:00,344 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:00,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states.
[2022-02-09 02:19:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1396.
[2022-02-09 02:19:00,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 3.9519713261648746) internal successors, (5513), 1395 states have internal predecessors, (5513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5513 transitions.
[2022-02-09 02:19:00,372 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5513 transitions. Word has length 25
[2022-02-09 02:19:00,372 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:00,372 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5513 transitions.
[2022-02-09 02:19:00,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5513 transitions.
[2022-02-09 02:19:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:00,375 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:00,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:00,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284
[2022-02-09 02:19:00,375 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:00,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash 969731605, now seen corresponding path program 281 times
[2022-02-09 02:19:00,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:00,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403680288]
[2022-02-09 02:19:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:00,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:00,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:00,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403680288]
[2022-02-09 02:19:00,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403680288] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:00,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:00,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:00,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965425197]
[2022-02-09 02:19:00,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:00,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:00,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:00,500 INFO L87 Difference]: Start difference. First operand 1396 states and 5513 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:00,610 INFO L93 Difference]: Finished difference Result 2831 states and 10437 transitions.
[2022-02-09 02:19:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:00,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:00,616 INFO L225 Difference]: With dead ends: 2831
[2022-02-09 02:19:00,616 INFO L226 Difference]: Without dead ends: 2642
[2022-02-09 02:19:00,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:00,616 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:00,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 137 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:00,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states.
[2022-02-09 02:19:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1420.
[2022-02-09 02:19:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.938689217758985) internal successors, (5589), 1419 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5589 transitions.
[2022-02-09 02:19:00,643 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5589 transitions. Word has length 25
[2022-02-09 02:19:00,643 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:00,643 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5589 transitions.
[2022-02-09 02:19:00,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5589 transitions.
[2022-02-09 02:19:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:00,645 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:00,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:00,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285
[2022-02-09 02:19:00,645 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash 228779507, now seen corresponding path program 282 times
[2022-02-09 02:19:00,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:00,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141214839]
[2022-02-09 02:19:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:00,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:00,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:00,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141214839]
[2022-02-09 02:19:00,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141214839] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:00,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:00,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:00,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729932905]
[2022-02-09 02:19:00,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:00,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:00,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:00,770 INFO L87 Difference]: Start difference. First operand 1420 states and 5589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:00,885 INFO L93 Difference]: Finished difference Result 2689 states and 9983 transitions.
[2022-02-09 02:19:00,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:00,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:00,892 INFO L225 Difference]: With dead ends: 2689
[2022-02-09 02:19:00,892 INFO L226 Difference]: Without dead ends: 2482
[2022-02-09 02:19:00,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:00,892 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:00,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states.
[2022-02-09 02:19:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1388.
[2022-02-09 02:19:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.95746214852199) internal successors, (5489), 1387 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5489 transitions.
[2022-02-09 02:19:00,922 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5489 transitions. Word has length 25
[2022-02-09 02:19:00,922 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:00,922 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5489 transitions.
[2022-02-09 02:19:00,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5489 transitions.
[2022-02-09 02:19:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:00,925 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:00,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:00,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286
[2022-02-09 02:19:00,925 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1874944887, now seen corresponding path program 283 times
[2022-02-09 02:19:00,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:00,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32582770]
[2022-02-09 02:19:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:00,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:01,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:01,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32582770]
[2022-02-09 02:19:01,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32582770] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:01,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:01,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:01,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264548546]
[2022-02-09 02:19:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:01,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:01,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:01,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:01,052 INFO L87 Difference]: Start difference. First operand 1388 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:01,165 INFO L93 Difference]: Finished difference Result 3063 states and 11315 transitions.
[2022-02-09 02:19:01,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:01,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:01,173 INFO L225 Difference]: With dead ends: 3063
[2022-02-09 02:19:01,173 INFO L226 Difference]: Without dead ends: 2874
[2022-02-09 02:19:01,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:01,173 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 118 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:01,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 135 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states.
[2022-02-09 02:19:01,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1440.
[2022-02-09 02:19:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9506601806810284) internal successors, (5685), 1439 states have internal predecessors, (5685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5685 transitions.
[2022-02-09 02:19:01,205 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5685 transitions. Word has length 25
[2022-02-09 02:19:01,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:01,205 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5685 transitions.
[2022-02-09 02:19:01,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5685 transitions.
[2022-02-09 02:19:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:01,208 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:01,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287
[2022-02-09 02:19:01,208 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1133992789, now seen corresponding path program 284 times
[2022-02-09 02:19:01,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:01,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688234813]
[2022-02-09 02:19:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:01,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:01,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:01,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688234813]
[2022-02-09 02:19:01,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688234813] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:01,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:01,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:01,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614572604]
[2022-02-09 02:19:01,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:01,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:01,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:01,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:01,358 INFO L87 Difference]: Start difference. First operand 1440 states and 5685 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:01,508 INFO L93 Difference]: Finished difference Result 3049 states and 11246 transitions.
[2022-02-09 02:19:01,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:01,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:01,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:01,518 INFO L225 Difference]: With dead ends: 3049
[2022-02-09 02:19:01,518 INFO L226 Difference]: Without dead ends: 2850
[2022-02-09 02:19:01,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:01,518 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:01,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 149 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states.
[2022-02-09 02:19:01,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1416.
[2022-02-09 02:19:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.95547703180212) internal successors, (5597), 1415 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5597 transitions.
[2022-02-09 02:19:01,557 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5597 transitions. Word has length 25
[2022-02-09 02:19:01,557 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:01,557 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5597 transitions.
[2022-02-09 02:19:01,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5597 transitions.
[2022-02-09 02:19:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:01,560 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:01,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:01,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288
[2022-02-09 02:19:01,560 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:01,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash 53909461, now seen corresponding path program 285 times
[2022-02-09 02:19:01,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:01,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430236862]
[2022-02-09 02:19:01,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:01,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:01,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:01,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430236862]
[2022-02-09 02:19:01,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430236862] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:01,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:01,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:01,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724517687]
[2022-02-09 02:19:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:01,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:01,702 INFO L87 Difference]: Start difference. First operand 1416 states and 5597 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:01,832 INFO L93 Difference]: Finished difference Result 3086 states and 11362 transitions.
[2022-02-09 02:19:01,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:01,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:01,840 INFO L225 Difference]: With dead ends: 3086
[2022-02-09 02:19:01,840 INFO L226 Difference]: Without dead ends: 2897
[2022-02-09 02:19:01,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:01,840 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:01,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states.
[2022-02-09 02:19:01,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1479.
[2022-02-09 02:19:01,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 3.9269282814614344) internal successors, (5804), 1478 states have internal predecessors, (5804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 5804 transitions.
[2022-02-09 02:19:01,868 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 5804 transitions. Word has length 25
[2022-02-09 02:19:01,868 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:01,868 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 5804 transitions.
[2022-02-09 02:19:01,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 5804 transitions.
[2022-02-09 02:19:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:01,871 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:01,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:01,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289
[2022-02-09 02:19:01,871 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2073862357, now seen corresponding path program 286 times
[2022-02-09 02:19:01,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:01,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167722290]
[2022-02-09 02:19:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:01,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:01,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:01,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167722290]
[2022-02-09 02:19:01,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167722290] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:01,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:01,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:01,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572461817]
[2022-02-09 02:19:01,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:01,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:01,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:01,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:01,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:01,992 INFO L87 Difference]: Start difference. First operand 1479 states and 5804 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:02,105 INFO L93 Difference]: Finished difference Result 3119 states and 11445 transitions.
[2022-02-09 02:19:02,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:02,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:02,112 INFO L225 Difference]: With dead ends: 3119
[2022-02-09 02:19:02,112 INFO L226 Difference]: Without dead ends: 2834
[2022-02-09 02:19:02,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:02,113 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:02,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 153 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states.
[2022-02-09 02:19:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1416.
[2022-02-09 02:19:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9356890459363956) internal successors, (5569), 1415 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5569 transitions.
[2022-02-09 02:19:02,141 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5569 transitions. Word has length 25
[2022-02-09 02:19:02,141 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:02,141 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5569 transitions.
[2022-02-09 02:19:02,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5569 transitions.
[2022-02-09 02:19:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:02,143 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:02,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:02,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290
[2022-02-09 02:19:02,143 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:02,144 INFO L85 PathProgramCache]: Analyzing trace with hash -199923405, now seen corresponding path program 287 times
[2022-02-09 02:19:02,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:02,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228765439]
[2022-02-09 02:19:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:02,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:02,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:02,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:02,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228765439]
[2022-02-09 02:19:02,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228765439] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:02,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:02,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:02,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070993844]
[2022-02-09 02:19:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:02,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:02,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:02,264 INFO L87 Difference]: Start difference. First operand 1416 states and 5569 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:02,390 INFO L93 Difference]: Finished difference Result 3035 states and 11170 transitions.
[2022-02-09 02:19:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:02,397 INFO L225 Difference]: With dead ends: 3035
[2022-02-09 02:19:02,397 INFO L226 Difference]: Without dead ends: 2860
[2022-02-09 02:19:02,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:02,397 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:02,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 173 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states.
[2022-02-09 02:19:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1456.
[2022-02-09 02:19:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9237113402061854) internal successors, (5709), 1455 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5709 transitions.
[2022-02-09 02:19:02,426 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5709 transitions. Word has length 25
[2022-02-09 02:19:02,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:02,426 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5709 transitions.
[2022-02-09 02:19:02,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5709 transitions.
[2022-02-09 02:19:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:02,429 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:02,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:02,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291
[2022-02-09 02:19:02,429 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:02,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 18428181, now seen corresponding path program 288 times
[2022-02-09 02:19:02,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:02,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85868279]
[2022-02-09 02:19:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:02,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:02,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:02,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:02,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85868279]
[2022-02-09 02:19:02,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85868279] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:02,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:02,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:02,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420548451]
[2022-02-09 02:19:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:02,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:02,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:02,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:02,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:02,550 INFO L87 Difference]: Start difference. First operand 1456 states and 5709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:02,663 INFO L93 Difference]: Finished difference Result 2987 states and 10970 transitions.
[2022-02-09 02:19:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:02,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:02,670 INFO L225 Difference]: With dead ends: 2987
[2022-02-09 02:19:02,670 INFO L226 Difference]: Without dead ends: 2685
[2022-02-09 02:19:02,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:02,670 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:02,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:02,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states.
[2022-02-09 02:19:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1376.
[2022-02-09 02:19:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.9643636363636365) internal successors, (5451), 1375 states have internal predecessors, (5451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5451 transitions.
[2022-02-09 02:19:02,697 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5451 transitions. Word has length 25
[2022-02-09 02:19:02,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:02,697 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5451 transitions.
[2022-02-09 02:19:02,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5451 transitions.
[2022-02-09 02:19:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:02,699 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:02,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:02,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292
[2022-02-09 02:19:02,700 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash -317194349, now seen corresponding path program 289 times
[2022-02-09 02:19:02,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:02,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876539714]
[2022-02-09 02:19:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:02,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:02,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:02,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876539714]
[2022-02-09 02:19:02,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876539714] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:02,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:02,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:02,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532952129]
[2022-02-09 02:19:02,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:02,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:02,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:02,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:02,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:02,819 INFO L87 Difference]: Start difference. First operand 1376 states and 5451 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:02,924 INFO L93 Difference]: Finished difference Result 2920 states and 10796 transitions.
[2022-02-09 02:19:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:02,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:02,931 INFO L225 Difference]: With dead ends: 2920
[2022-02-09 02:19:02,931 INFO L226 Difference]: Without dead ends: 2761
[2022-02-09 02:19:02,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:02,931 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:02,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 150 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states.
[2022-02-09 02:19:02,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1432.
[2022-02-09 02:19:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.96575821104123) internal successors, (5675), 1431 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions.
[2022-02-09 02:19:02,961 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25
[2022-02-09 02:19:02,961 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:02,961 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions.
[2022-02-09 02:19:02,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions.
[2022-02-09 02:19:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:02,963 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:02,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:02,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293
[2022-02-09 02:19:02,963 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1325492333, now seen corresponding path program 290 times
[2022-02-09 02:19:02,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:02,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67383677]
[2022-02-09 02:19:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:02,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:03,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:03,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67383677]
[2022-02-09 02:19:03,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67383677] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:03,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:03,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:03,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393350450]
[2022-02-09 02:19:03,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:03,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:03,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:03,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:03,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:03,084 INFO L87 Difference]: Start difference. First operand 1432 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:03,189 INFO L93 Difference]: Finished difference Result 2983 states and 11003 transitions.
[2022-02-09 02:19:03,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:03,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:03,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:03,196 INFO L225 Difference]: With dead ends: 2983
[2022-02-09 02:19:03,197 INFO L226 Difference]: Without dead ends: 2729
[2022-02-09 02:19:03,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:03,197 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:03,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:03,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states.
[2022-02-09 02:19:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1400.
[2022-02-09 02:19:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.964974982130093) internal successors, (5547), 1399 states have internal predecessors, (5547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5547 transitions.
[2022-02-09 02:19:03,225 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5547 transitions. Word has length 25
[2022-02-09 02:19:03,225 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:03,225 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5547 transitions.
[2022-02-09 02:19:03,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5547 transitions.
[2022-02-09 02:19:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:03,227 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:03,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:03,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294
[2022-02-09 02:19:03,227 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1716595509, now seen corresponding path program 291 times
[2022-02-09 02:19:03,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:03,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919758170]
[2022-02-09 02:19:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:03,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:03,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:03,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919758170]
[2022-02-09 02:19:03,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919758170] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:03,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:03,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:03,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792310273]
[2022-02-09 02:19:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:03,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:03,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:03,362 INFO L87 Difference]: Start difference. First operand 1400 states and 5547 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:03,463 INFO L93 Difference]: Finished difference Result 2865 states and 10585 transitions.
[2022-02-09 02:19:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:03,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:03,470 INFO L225 Difference]: With dead ends: 2865
[2022-02-09 02:19:03,470 INFO L226 Difference]: Without dead ends: 2706
[2022-02-09 02:19:03,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:03,470 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:03,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states.
[2022-02-09 02:19:03,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 1416.
[2022-02-09 02:19:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.954063604240283) internal successors, (5595), 1415 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5595 transitions.
[2022-02-09 02:19:03,500 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5595 transitions. Word has length 25
[2022-02-09 02:19:03,500 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:03,500 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5595 transitions.
[2022-02-09 02:19:03,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5595 transitions.
[2022-02-09 02:19:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:03,503 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:03,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:03,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295
[2022-02-09 02:19:03,503 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash -897875147, now seen corresponding path program 292 times
[2022-02-09 02:19:03,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:03,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926475074]
[2022-02-09 02:19:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:03,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:03,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:03,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926475074]
[2022-02-09 02:19:03,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926475074] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:03,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:03,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:03,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024574520]
[2022-02-09 02:19:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:03,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:03,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:03,628 INFO L87 Difference]: Start difference. First operand 1416 states and 5595 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:03,764 INFO L93 Difference]: Finished difference Result 2889 states and 10661 transitions.
[2022-02-09 02:19:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:03,770 INFO L225 Difference]: With dead ends: 2889
[2022-02-09 02:19:03,770 INFO L226 Difference]: Without dead ends: 2690
[2022-02-09 02:19:03,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:03,770 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:03,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 185 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states.
[2022-02-09 02:19:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1400.
[2022-02-09 02:19:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9592566118656185) internal successors, (5539), 1399 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions.
[2022-02-09 02:19:03,796 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25
[2022-02-09 02:19:03,796 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:03,796 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions.
[2022-02-09 02:19:03,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions.
[2022-02-09 02:19:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:03,799 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:03,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:03,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296
[2022-02-09 02:19:03,799 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:03,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash 790371125, now seen corresponding path program 293 times
[2022-02-09 02:19:03,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:03,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478732017]
[2022-02-09 02:19:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:03,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:03,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:03,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478732017]
[2022-02-09 02:19:03,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478732017] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:03,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:03,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:03,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181799958]
[2022-02-09 02:19:03,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:03,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:03,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:03,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:03,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:03,921 INFO L87 Difference]: Start difference. First operand 1400 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:04,048 INFO L93 Difference]: Finished difference Result 2980 states and 11008 transitions.
[2022-02-09 02:19:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:04,055 INFO L225 Difference]: With dead ends: 2980
[2022-02-09 02:19:04,055 INFO L226 Difference]: Without dead ends: 2797
[2022-02-09 02:19:04,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:04,055 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:04,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 160 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:04,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states.
[2022-02-09 02:19:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1444.
[2022-02-09 02:19:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.943866943866944) internal successors, (5691), 1443 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5691 transitions.
[2022-02-09 02:19:04,084 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5691 transitions. Word has length 25
[2022-02-09 02:19:04,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:04,084 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5691 transitions.
[2022-02-09 02:19:04,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5691 transitions.
[2022-02-09 02:19:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:04,086 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:04,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:04,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297
[2022-02-09 02:19:04,086 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:04,087 INFO L85 PathProgramCache]: Analyzing trace with hash -213960813, now seen corresponding path program 294 times
[2022-02-09 02:19:04,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:04,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981715400]
[2022-02-09 02:19:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:04,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:04,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:04,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981715400]
[2022-02-09 02:19:04,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981715400] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:04,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:04,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:04,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506021662]
[2022-02-09 02:19:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:04,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:04,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:04,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:04,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:04,207 INFO L87 Difference]: Start difference. First operand 1444 states and 5691 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:04,323 INFO L93 Difference]: Finished difference Result 3019 states and 11111 transitions.
[2022-02-09 02:19:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:04,329 INFO L225 Difference]: With dead ends: 3019
[2022-02-09 02:19:04,330 INFO L226 Difference]: Without dead ends: 2737
[2022-02-09 02:19:04,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:04,330 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:04,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states.
[2022-02-09 02:19:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1384.
[2022-02-09 02:19:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.9645697758496024) internal successors, (5483), 1383 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5483 transitions.
[2022-02-09 02:19:04,366 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5483 transitions. Word has length 25
[2022-02-09 02:19:04,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:04,366 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5483 transitions.
[2022-02-09 02:19:04,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5483 transitions.
[2022-02-09 02:19:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:04,369 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:04,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:04,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298
[2022-02-09 02:19:04,370 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1392407413, now seen corresponding path program 295 times
[2022-02-09 02:19:04,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:04,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299533937]
[2022-02-09 02:19:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:04,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:04,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:04,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299533937]
[2022-02-09 02:19:04,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299533937] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:04,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:04,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:04,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489014124]
[2022-02-09 02:19:04,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:04,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:04,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:04,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:04,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:04,492 INFO L87 Difference]: Start difference. First operand 1384 states and 5483 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:04,611 INFO L93 Difference]: Finished difference Result 2860 states and 10544 transitions.
[2022-02-09 02:19:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:04,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:04,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:04,618 INFO L225 Difference]: With dead ends: 2860
[2022-02-09 02:19:04,618 INFO L226 Difference]: Without dead ends: 2701
[2022-02-09 02:19:04,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:04,618 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 101 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:04,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 160 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states.
[2022-02-09 02:19:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1432.
[2022-02-09 02:19:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.960167714884696) internal successors, (5667), 1431 states have internal predecessors, (5667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5667 transitions.
[2022-02-09 02:19:04,646 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5667 transitions. Word has length 25
[2022-02-09 02:19:04,646 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:04,646 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5667 transitions.
[2022-02-09 02:19:04,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5667 transitions.
[2022-02-09 02:19:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:04,648 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:04,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:04,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299
[2022-02-09 02:19:04,648 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:04,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:04,648 INFO L85 PathProgramCache]: Analyzing trace with hash 384109429, now seen corresponding path program 296 times
[2022-02-09 02:19:04,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:04,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068085900]
[2022-02-09 02:19:04,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:04,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:04,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:04,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068085900]
[2022-02-09 02:19:04,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068085900] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:04,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:04,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:04,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593329619]
[2022-02-09 02:19:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:04,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:04,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:04,767 INFO L87 Difference]: Start difference. First operand 1432 states and 5667 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:04,877 INFO L93 Difference]: Finished difference Result 2923 states and 10751 transitions.
[2022-02-09 02:19:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:04,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:04,882 INFO L225 Difference]: With dead ends: 2923
[2022-02-09 02:19:04,882 INFO L226 Difference]: Without dead ends: 2669
[2022-02-09 02:19:04,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:04,883 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:04,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 165 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:04,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states.
[2022-02-09 02:19:04,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1400.
[2022-02-09 02:19:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9592566118656185) internal successors, (5539), 1399 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions.
[2022-02-09 02:19:04,908 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25
[2022-02-09 02:19:04,908 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:04,908 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions.
[2022-02-09 02:19:04,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions.
[2022-02-09 02:19:04,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:04,910 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:04,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:04,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300
[2022-02-09 02:19:04,910 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:04,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1852050763, now seen corresponding path program 297 times
[2022-02-09 02:19:04,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:04,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132200328]
[2022-02-09 02:19:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:04,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:05,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:05,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132200328]
[2022-02-09 02:19:05,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132200328] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:05,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:05,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:05,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60041088]
[2022-02-09 02:19:05,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:05,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:05,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:05,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:05,034 INFO L87 Difference]: Start difference. First operand 1400 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:05,150 INFO L93 Difference]: Finished difference Result 2765 states and 10193 transitions.
[2022-02-09 02:19:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:05,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:05,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:05,157 INFO L225 Difference]: With dead ends: 2765
[2022-02-09 02:19:05,157 INFO L226 Difference]: Without dead ends: 2606
[2022-02-09 02:19:05,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:05,157 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:05,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 172 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states.
[2022-02-09 02:19:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1416.
[2022-02-09 02:19:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.948409893992933) internal successors, (5587), 1415 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5587 transitions.
[2022-02-09 02:19:05,184 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5587 transitions. Word has length 25
[2022-02-09 02:19:05,184 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:05,184 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5587 transitions.
[2022-02-09 02:19:05,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5587 transitions.
[2022-02-09 02:19:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:05,187 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:05,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:05,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301
[2022-02-09 02:19:05,188 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:05,188 INFO L85 PathProgramCache]: Analyzing trace with hash 500644533, now seen corresponding path program 298 times
[2022-02-09 02:19:05,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:05,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550789535]
[2022-02-09 02:19:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:05,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:05,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:05,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550789535]
[2022-02-09 02:19:05,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550789535] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:05,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:05,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:05,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661290706]
[2022-02-09 02:19:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:05,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:05,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:05,327 INFO L87 Difference]: Start difference. First operand 1416 states and 5587 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:05,444 INFO L93 Difference]: Finished difference Result 2653 states and 9856 transitions.
[2022-02-09 02:19:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:05,449 INFO L225 Difference]: With dead ends: 2653
[2022-02-09 02:19:05,449 INFO L226 Difference]: Without dead ends: 2462
[2022-02-09 02:19:05,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:05,449 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:05,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 160 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states.
[2022-02-09 02:19:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 1400.
[2022-02-09 02:19:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9535382416011435) internal successors, (5531), 1399 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5531 transitions.
[2022-02-09 02:19:05,472 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5531 transitions. Word has length 25
[2022-02-09 02:19:05,472 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:05,473 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5531 transitions.
[2022-02-09 02:19:05,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5531 transitions.
[2022-02-09 02:19:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:05,475 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:05,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:05,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302
[2022-02-09 02:19:05,475 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2106076491, now seen corresponding path program 299 times
[2022-02-09 02:19:05,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:05,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743551537]
[2022-02-09 02:19:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:05,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:05,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:05,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743551537]
[2022-02-09 02:19:05,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743551537] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:05,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:05,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:05,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850575121]
[2022-02-09 02:19:05,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:05,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:05,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:05,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:05,600 INFO L87 Difference]: Start difference. First operand 1400 states and 5531 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:05,763 INFO L93 Difference]: Finished difference Result 2900 states and 10684 transitions.
[2022-02-09 02:19:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:05,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:05,771 INFO L225 Difference]: With dead ends: 2900
[2022-02-09 02:19:05,772 INFO L226 Difference]: Without dead ends: 2725
[2022-02-09 02:19:05,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:05,772 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:05,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:05,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states.
[2022-02-09 02:19:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1440.
[2022-02-09 02:19:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9409312022237666) internal successors, (5671), 1439 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5671 transitions.
[2022-02-09 02:19:05,813 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5671 transitions. Word has length 25
[2022-02-09 02:19:05,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:05,814 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5671 transitions.
[2022-02-09 02:19:05,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5671 transitions.
[2022-02-09 02:19:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:05,816 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:05,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:05,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303
[2022-02-09 02:19:05,816 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash 533366419, now seen corresponding path program 300 times
[2022-02-09 02:19:05,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:05,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072543118]
[2022-02-09 02:19:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:05,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:05,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:05,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072543118]
[2022-02-09 02:19:05,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072543118] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:05,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:05,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:05,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513053623]
[2022-02-09 02:19:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:05,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:05,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:05,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:05,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:05,942 INFO L87 Difference]: Start difference. First operand 1440 states and 5671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:06,047 INFO L93 Difference]: Finished difference Result 2852 states and 10484 transitions.
[2022-02-09 02:19:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:06,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:06,053 INFO L225 Difference]: With dead ends: 2852
[2022-02-09 02:19:06,053 INFO L226 Difference]: Without dead ends: 2574
[2022-02-09 02:19:06,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:06,053 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:06,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states.
[2022-02-09 02:19:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1384.
[2022-02-09 02:19:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.9587852494577005) internal successors, (5475), 1383 states have internal predecessors, (5475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5475 transitions.
[2022-02-09 02:19:06,077 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5475 transitions. Word has length 25
[2022-02-09 02:19:06,077 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:06,077 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5475 transitions.
[2022-02-09 02:19:06,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5475 transitions.
[2022-02-09 02:19:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:06,079 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:06,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:06,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304
[2022-02-09 02:19:06,079 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:06,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash 967036375, now seen corresponding path program 301 times
[2022-02-09 02:19:06,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:06,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385343987]
[2022-02-09 02:19:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:06,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:06,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:06,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385343987]
[2022-02-09 02:19:06,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385343987] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:06,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:06,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:06,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264557119]
[2022-02-09 02:19:06,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:06,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:06,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:06,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:06,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:06,206 INFO L87 Difference]: Start difference. First operand 1384 states and 5475 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:06,307 INFO L93 Difference]: Finished difference Result 2710 states and 9998 transitions.
[2022-02-09 02:19:06,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:06,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:06,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:06,327 INFO L225 Difference]: With dead ends: 2710
[2022-02-09 02:19:06,327 INFO L226 Difference]: Without dead ends: 2551
[2022-02-09 02:19:06,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:06,328 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 104 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:06,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 153 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:06,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states.
[2022-02-09 02:19:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 1408.
[2022-02-09 02:19:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.9509594882729213) internal successors, (5559), 1407 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5559 transitions.
[2022-02-09 02:19:06,352 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5559 transitions. Word has length 25
[2022-02-09 02:19:06,352 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:06,352 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5559 transitions.
[2022-02-09 02:19:06,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5559 transitions.
[2022-02-09 02:19:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:06,354 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:06,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:06,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305
[2022-02-09 02:19:06,355 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1647434281, now seen corresponding path program 302 times
[2022-02-09 02:19:06,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:06,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596565871]
[2022-02-09 02:19:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:06,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:06,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:06,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596565871]
[2022-02-09 02:19:06,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596565871] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:06,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:06,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:06,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892429443]
[2022-02-09 02:19:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:06,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:06,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:06,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:06,475 INFO L87 Difference]: Start difference. First operand 1408 states and 5559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:06,583 INFO L93 Difference]: Finished difference Result 2734 states and 10074 transitions.
[2022-02-09 02:19:06,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:06,589 INFO L225 Difference]: With dead ends: 2734
[2022-02-09 02:19:06,590 INFO L226 Difference]: Without dead ends: 2535
[2022-02-09 02:19:06,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:06,590 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:06,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states.
[2022-02-09 02:19:06,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 1392.
[2022-02-09 02:19:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9561466570812365) internal successors, (5503), 1391 states have internal predecessors, (5503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5503 transitions.
[2022-02-09 02:19:06,613 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5503 transitions. Word has length 25
[2022-02-09 02:19:06,613 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:06,613 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5503 transitions.
[2022-02-09 02:19:06,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5503 transitions.
[2022-02-09 02:19:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:06,616 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:06,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:06,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306
[2022-02-09 02:19:06,616 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash 120239413, now seen corresponding path program 303 times
[2022-02-09 02:19:06,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:06,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044126469]
[2022-02-09 02:19:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:06,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:06,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:06,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044126469]
[2022-02-09 02:19:06,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044126469] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:06,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:06,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:06,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96585883]
[2022-02-09 02:19:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:06,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:06,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:06,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:06,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:06,737 INFO L87 Difference]: Start difference. First operand 1392 states and 5503 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:06,843 INFO L93 Difference]: Finished difference Result 2654 states and 9786 transitions.
[2022-02-09 02:19:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:06,848 INFO L225 Difference]: With dead ends: 2654
[2022-02-09 02:19:06,849 INFO L226 Difference]: Without dead ends: 2495
[2022-02-09 02:19:06,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:06,849 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:06,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:06,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states.
[2022-02-09 02:19:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1408.
[2022-02-09 02:19:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.945273631840796) internal successors, (5551), 1407 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5551 transitions.
[2022-02-09 02:19:06,873 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5551 transitions. Word has length 25
[2022-02-09 02:19:06,873 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:06,873 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5551 transitions.
[2022-02-09 02:19:06,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5551 transitions.
[2022-02-09 02:19:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:06,875 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:06,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:06,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307
[2022-02-09 02:19:06,876 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 762578391, now seen corresponding path program 304 times
[2022-02-09 02:19:06,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:06,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571717793]
[2022-02-09 02:19:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:06,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:06,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:06,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571717793]
[2022-02-09 02:19:06,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571717793] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:06,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:06,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:06,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586431293]
[2022-02-09 02:19:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:06,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:06,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:06,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:06,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:06,995 INFO L87 Difference]: Start difference. First operand 1408 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:07,100 INFO L93 Difference]: Finished difference Result 2542 states and 9449 transitions.
[2022-02-09 02:19:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:07,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:07,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:07,107 INFO L225 Difference]: With dead ends: 2542
[2022-02-09 02:19:07,107 INFO L226 Difference]: Without dead ends: 2351
[2022-02-09 02:19:07,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:07,107 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:07,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 135 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:07,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states.
[2022-02-09 02:19:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1392.
[2022-02-09 02:19:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9503953989935296) internal successors, (5495), 1391 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5495 transitions.
[2022-02-09 02:19:07,133 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5495 transitions. Word has length 25
[2022-02-09 02:19:07,133 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:07,133 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5495 transitions.
[2022-02-09 02:19:07,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5495 transitions.
[2022-02-09 02:19:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:07,135 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:07,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:07,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308
[2022-02-09 02:19:07,136 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 139947479, now seen corresponding path program 305 times
[2022-02-09 02:19:07,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:07,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7091310]
[2022-02-09 02:19:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:07,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:07,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:07,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7091310]
[2022-02-09 02:19:07,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7091310] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:07,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:07,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:07,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657625884]
[2022-02-09 02:19:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:07,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:07,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:07,279 INFO L87 Difference]: Start difference. First operand 1392 states and 5495 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:07,412 INFO L93 Difference]: Finished difference Result 2558 states and 9521 transitions.
[2022-02-09 02:19:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:07,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:07,418 INFO L225 Difference]: With dead ends: 2558
[2022-02-09 02:19:07,418 INFO L226 Difference]: Without dead ends: 2375
[2022-02-09 02:19:07,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:07,418 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:07,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 155 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states.
[2022-02-09 02:19:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1416.
[2022-02-09 02:19:07,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9371024734982334) internal successors, (5571), 1415 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5571 transitions.
[2022-02-09 02:19:07,444 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5571 transitions. Word has length 25
[2022-02-09 02:19:07,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:07,444 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5571 transitions.
[2022-02-09 02:19:07,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5571 transitions.
[2022-02-09 02:19:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:07,447 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:07,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:07,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309
[2022-02-09 02:19:07,447 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:07,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:07,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1903389515, now seen corresponding path program 306 times
[2022-02-09 02:19:07,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:07,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054371795]
[2022-02-09 02:19:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:07,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:07,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:07,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054371795]
[2022-02-09 02:19:07,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054371795] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:07,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:07,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:07,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324600009]
[2022-02-09 02:19:07,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:07,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:07,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:07,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:07,578 INFO L87 Difference]: Start difference. First operand 1416 states and 5571 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:07,680 INFO L93 Difference]: Finished difference Result 2374 states and 8908 transitions.
[2022-02-09 02:19:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:07,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:07,685 INFO L225 Difference]: With dead ends: 2374
[2022-02-09 02:19:07,685 INFO L226 Difference]: Without dead ends: 2167
[2022-02-09 02:19:07,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:07,685 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 87 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:07,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states.
[2022-02-09 02:19:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1384.
[2022-02-09 02:19:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.95589298626175) internal successors, (5471), 1383 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5471 transitions.
[2022-02-09 02:19:07,707 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5471 transitions. Word has length 25
[2022-02-09 02:19:07,707 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:07,707 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5471 transitions.
[2022-02-09 02:19:07,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5471 transitions.
[2022-02-09 02:19:07,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:07,709 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:07,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:07,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310
[2022-02-09 02:19:07,709 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:07,709 INFO L85 PathProgramCache]: Analyzing trace with hash -953023017, now seen corresponding path program 307 times
[2022-02-09 02:19:07,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:07,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599311781]
[2022-02-09 02:19:07,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:07,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:07,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:07,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599311781]
[2022-02-09 02:19:07,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599311781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:07,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:07,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:07,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558302407]
[2022-02-09 02:19:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:07,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:07,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:07,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:07,832 INFO L87 Difference]: Start difference. First operand 1384 states and 5471 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:07,945 INFO L93 Difference]: Finished difference Result 2933 states and 10857 transitions.
[2022-02-09 02:19:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:07,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:07,952 INFO L225 Difference]: With dead ends: 2933
[2022-02-09 02:19:07,952 INFO L226 Difference]: Without dead ends: 2750
[2022-02-09 02:19:07,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:07,952 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:07,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states.
[2022-02-09 02:19:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1428.
[2022-02-09 02:19:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 3.9516468114926417) internal successors, (5639), 1427 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5639 transitions.
[2022-02-09 02:19:07,984 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5639 transitions. Word has length 25
[2022-02-09 02:19:07,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:07,984 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5639 transitions.
[2022-02-09 02:19:07,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5639 transitions.
[2022-02-09 02:19:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:07,986 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:07,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:07,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311
[2022-02-09 02:19:07,986 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1298607285, now seen corresponding path program 308 times
[2022-02-09 02:19:07,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:07,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539218318]
[2022-02-09 02:19:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:07,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:08,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:08,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539218318]
[2022-02-09 02:19:08,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539218318] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:08,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:08,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:08,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354755508]
[2022-02-09 02:19:08,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:08,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:08,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:08,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:08,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:08,112 INFO L87 Difference]: Start difference. First operand 1428 states and 5639 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:08,221 INFO L93 Difference]: Finished difference Result 2925 states and 10805 transitions.
[2022-02-09 02:19:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:08,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:08,229 INFO L225 Difference]: With dead ends: 2925
[2022-02-09 02:19:08,229 INFO L226 Difference]: Without dead ends: 2726
[2022-02-09 02:19:08,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:08,229 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:08,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 136 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states.
[2022-02-09 02:19:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1404.
[2022-02-09 02:19:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9565217391304346) internal successors, (5551), 1403 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions.
[2022-02-09 02:19:08,259 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25
[2022-02-09 02:19:08,259 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:08,259 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions.
[2022-02-09 02:19:08,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions.
[2022-02-09 02:19:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:08,261 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:08,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:08,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312
[2022-02-09 02:19:08,261 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1520908853, now seen corresponding path program 309 times
[2022-02-09 02:19:08,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:08,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54781478]
[2022-02-09 02:19:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:08,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:08,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:08,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54781478]
[2022-02-09 02:19:08,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54781478] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:08,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:08,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:08,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900628249]
[2022-02-09 02:19:08,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:08,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:08,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:08,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:08,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:08,385 INFO L87 Difference]: Start difference. First operand 1404 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:08,502 INFO L93 Difference]: Finished difference Result 2861 states and 10569 transitions.
[2022-02-09 02:19:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:08,509 INFO L225 Difference]: With dead ends: 2861
[2022-02-09 02:19:08,509 INFO L226 Difference]: Without dead ends: 2678
[2022-02-09 02:19:08,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:08,509 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:08,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states.
[2022-02-09 02:19:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1448.
[2022-02-09 02:19:08,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9412577747062887) internal successors, (5703), 1447 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5703 transitions.
[2022-02-09 02:19:08,558 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5703 transitions. Word has length 25
[2022-02-09 02:19:08,558 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:08,558 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5703 transitions.
[2022-02-09 02:19:08,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5703 transitions.
[2022-02-09 02:19:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:08,560 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:08,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:08,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313
[2022-02-09 02:19:08,560 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2056490443, now seen corresponding path program 310 times
[2022-02-09 02:19:08,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:08,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955222781]
[2022-02-09 02:19:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:08,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:08,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:08,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955222781]
[2022-02-09 02:19:08,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955222781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:08,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:08,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:08,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762464151]
[2022-02-09 02:19:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:08,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:08,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:08,682 INFO L87 Difference]: Start difference. First operand 1448 states and 5703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:08,783 INFO L93 Difference]: Finished difference Result 2900 states and 10672 transitions.
[2022-02-09 02:19:08,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:08,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:08,790 INFO L225 Difference]: With dead ends: 2900
[2022-02-09 02:19:08,790 INFO L226 Difference]: Without dead ends: 2634
[2022-02-09 02:19:08,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:08,790 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:08,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 139 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:08,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states.
[2022-02-09 02:19:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1404.
[2022-02-09 02:19:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9422665716322167) internal successors, (5531), 1403 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5531 transitions.
[2022-02-09 02:19:08,818 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5531 transitions. Word has length 25
[2022-02-09 02:19:08,818 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:08,818 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5531 transitions.
[2022-02-09 02:19:08,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5531 transitions.
[2022-02-09 02:19:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:08,820 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:08,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:08,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314
[2022-02-09 02:19:08,820 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:08,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1791710829, now seen corresponding path program 311 times
[2022-02-09 02:19:08,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:08,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158791938]
[2022-02-09 02:19:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:08,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:08,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:08,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158791938]
[2022-02-09 02:19:08,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158791938] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:08,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:08,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:08,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363646462]
[2022-02-09 02:19:08,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:08,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:08,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:08,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:08,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:08,940 INFO L87 Difference]: Start difference. First operand 1404 states and 5531 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:09,052 INFO L93 Difference]: Finished difference Result 2801 states and 10313 transitions.
[2022-02-09 02:19:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:09,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:09,058 INFO L225 Difference]: With dead ends: 2801
[2022-02-09 02:19:09,059 INFO L226 Difference]: Without dead ends: 2626
[2022-02-09 02:19:09,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:09,059 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:09,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states.
[2022-02-09 02:19:09,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1444.
[2022-02-09 02:19:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.93000693000693) internal successors, (5671), 1443 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5671 transitions.
[2022-02-09 02:19:09,092 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5671 transitions. Word has length 25
[2022-02-09 02:19:09,092 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:09,092 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5671 transitions.
[2022-02-09 02:19:09,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5671 transitions.
[2022-02-09 02:19:09,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:09,094 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:09,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:09,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315
[2022-02-09 02:19:09,095 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:09,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:09,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1573359243, now seen corresponding path program 312 times
[2022-02-09 02:19:09,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:09,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185139562]
[2022-02-09 02:19:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:09,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:09,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:09,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185139562]
[2022-02-09 02:19:09,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185139562] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:09,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:09,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:09,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100809527]
[2022-02-09 02:19:09,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:09,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:09,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:09,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:09,219 INFO L87 Difference]: Start difference. First operand 1444 states and 5671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:09,316 INFO L93 Difference]: Finished difference Result 2753 states and 10113 transitions.
[2022-02-09 02:19:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:09,322 INFO L225 Difference]: With dead ends: 2753
[2022-02-09 02:19:09,322 INFO L226 Difference]: Without dead ends: 2463
[2022-02-09 02:19:09,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:09,322 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:09,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 129 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:09,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states.
[2022-02-09 02:19:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1376.
[2022-02-09 02:19:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.9614545454545453) internal successors, (5447), 1375 states have internal predecessors, (5447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5447 transitions.
[2022-02-09 02:19:09,348 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5447 transitions. Word has length 25
[2022-02-09 02:19:09,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:09,348 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5447 transitions.
[2022-02-09 02:19:09,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5447 transitions.
[2022-02-09 02:19:09,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:09,350 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:09,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:09,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316
[2022-02-09 02:19:09,350 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:09,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash -895981905, now seen corresponding path program 313 times
[2022-02-09 02:19:09,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:09,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470866835]
[2022-02-09 02:19:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:09,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:09,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:09,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470866835]
[2022-02-09 02:19:09,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470866835] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:09,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:09,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:09,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176382319]
[2022-02-09 02:19:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:09,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:09,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:09,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:09,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:09,468 INFO L87 Difference]: Start difference. First operand 1376 states and 5447 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:09,576 INFO L93 Difference]: Finished difference Result 2713 states and 10002 transitions.
[2022-02-09 02:19:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:09,582 INFO L225 Difference]: With dead ends: 2713
[2022-02-09 02:19:09,582 INFO L226 Difference]: Without dead ends: 2554
[2022-02-09 02:19:09,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:09,582 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:09,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 169 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states.
[2022-02-09 02:19:09,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1404.
[2022-02-09 02:19:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9565217391304346) internal successors, (5551), 1403 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions.
[2022-02-09 02:19:09,609 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25
[2022-02-09 02:19:09,609 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:09,609 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions.
[2022-02-09 02:19:09,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions.
[2022-02-09 02:19:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:09,611 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:09,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:09,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317
[2022-02-09 02:19:09,612 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:09,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:09,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1809050641, now seen corresponding path program 314 times
[2022-02-09 02:19:09,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:09,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021894696]
[2022-02-09 02:19:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:09,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:09,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:09,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021894696]
[2022-02-09 02:19:09,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021894696] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:09,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:09,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:09,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658824668]
[2022-02-09 02:19:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:09,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:09,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:09,729 INFO L87 Difference]: Start difference. First operand 1404 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:09,843 INFO L93 Difference]: Finished difference Result 2743 states and 10095 transitions.
[2022-02-09 02:19:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:09,849 INFO L225 Difference]: With dead ends: 2743
[2022-02-09 02:19:09,849 INFO L226 Difference]: Without dead ends: 2538
[2022-02-09 02:19:09,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:09,849 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:09,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 157 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states.
[2022-02-09 02:19:09,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1388.
[2022-02-09 02:19:09,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9617880317231435) internal successors, (5495), 1387 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5495 transitions.
[2022-02-09 02:19:09,873 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5495 transitions. Word has length 25
[2022-02-09 02:19:09,874 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:09,874 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5495 transitions.
[2022-02-09 02:19:09,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5495 transitions.
[2022-02-09 02:19:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:09,876 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:09,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:09,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318
[2022-02-09 02:19:09,876 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1102789871, now seen corresponding path program 315 times
[2022-02-09 02:19:09,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:09,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909986594]
[2022-02-09 02:19:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:09,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:09,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:09,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909986594]
[2022-02-09 02:19:09,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909986594] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:09,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:09,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:09,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982153769]
[2022-02-09 02:19:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:09,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:09,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:09,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:09,996 INFO L87 Difference]: Start difference. First operand 1388 states and 5495 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:10,112 INFO L93 Difference]: Finished difference Result 2707 states and 9977 transitions.
[2022-02-09 02:19:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:10,119 INFO L225 Difference]: With dead ends: 2707
[2022-02-09 02:19:10,119 INFO L226 Difference]: Without dead ends: 2548
[2022-02-09 02:19:10,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:10,119 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 97 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:10,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 171 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states.
[2022-02-09 02:19:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1404.
[2022-02-09 02:19:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9508196721311477) internal successors, (5543), 1403 states have internal predecessors, (5543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions.
[2022-02-09 02:19:10,146 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25
[2022-02-09 02:19:10,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:10,146 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions.
[2022-02-09 02:19:10,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions.
[2022-02-09 02:19:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:10,148 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:10,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:10,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319
[2022-02-09 02:19:10,149 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash 577706769, now seen corresponding path program 316 times
[2022-02-09 02:19:10,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:10,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498205490]
[2022-02-09 02:19:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:10,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:10,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:10,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498205490]
[2022-02-09 02:19:10,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498205490] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:10,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:10,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:10,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430109918]
[2022-02-09 02:19:10,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:10,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:10,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:10,267 INFO L87 Difference]: Start difference. First operand 1404 states and 5543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:10,381 INFO L93 Difference]: Finished difference Result 2731 states and 10053 transitions.
[2022-02-09 02:19:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:10,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:10,386 INFO L225 Difference]: With dead ends: 2731
[2022-02-09 02:19:10,386 INFO L226 Difference]: Without dead ends: 2532
[2022-02-09 02:19:10,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:10,387 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:10,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:10,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states.
[2022-02-09 02:19:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1388.
[2022-02-09 02:19:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9560201874549388) internal successors, (5487), 1387 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions.
[2022-02-09 02:19:10,410 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25
[2022-02-09 02:19:10,410 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:10,410 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions.
[2022-02-09 02:19:10,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions.
[2022-02-09 02:19:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:10,412 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:10,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:10,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320
[2022-02-09 02:19:10,412 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:10,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:10,412 INFO L85 PathProgramCache]: Analyzing trace with hash 314372083, now seen corresponding path program 317 times
[2022-02-09 02:19:10,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:10,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742847910]
[2022-02-09 02:19:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:10,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:10,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:10,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742847910]
[2022-02-09 02:19:10,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742847910] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:10,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:10,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:10,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394927667]
[2022-02-09 02:19:10,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:10,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:10,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:10,529 INFO L87 Difference]: Start difference. First operand 1388 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:10,637 INFO L93 Difference]: Finished difference Result 2779 states and 10239 transitions.
[2022-02-09 02:19:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:10,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:10,644 INFO L225 Difference]: With dead ends: 2779
[2022-02-09 02:19:10,644 INFO L226 Difference]: Without dead ends: 2590
[2022-02-09 02:19:10,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:10,644 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:10,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 150 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states.
[2022-02-09 02:19:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1416.
[2022-02-09 02:19:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.939929328621908) internal successors, (5575), 1415 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions.
[2022-02-09 02:19:10,672 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25
[2022-02-09 02:19:10,672 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:10,672 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions.
[2022-02-09 02:19:10,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions.
[2022-02-09 02:19:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:10,675 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:10,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:10,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321
[2022-02-09 02:19:10,675 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:10,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1077772463, now seen corresponding path program 318 times
[2022-02-09 02:19:10,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:10,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791309190]
[2022-02-09 02:19:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:10,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:10,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:10,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791309190]
[2022-02-09 02:19:10,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791309190] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:10,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:10,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:10,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719225836]
[2022-02-09 02:19:10,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:10,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:10,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:10,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:10,801 INFO L87 Difference]: Start difference. First operand 1416 states and 5575 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:10,908 INFO L93 Difference]: Finished difference Result 2773 states and 10194 transitions.
[2022-02-09 02:19:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:10,914 INFO L225 Difference]: With dead ends: 2773
[2022-02-09 02:19:10,914 INFO L226 Difference]: Without dead ends: 2554
[2022-02-09 02:19:10,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:10,915 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:10,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 139 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:10,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states.
[2022-02-09 02:19:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1380.
[2022-02-09 02:19:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.9615663524292968) internal successors, (5463), 1379 states have internal predecessors, (5463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5463 transitions.
[2022-02-09 02:19:10,942 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5463 transitions. Word has length 25
[2022-02-09 02:19:10,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:10,943 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5463 transitions.
[2022-02-09 02:19:10,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5463 transitions.
[2022-02-09 02:19:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:10,945 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:10,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:10,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322
[2022-02-09 02:19:10,945 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:10,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1376883951, now seen corresponding path program 319 times
[2022-02-09 02:19:10,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:10,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866517270]
[2022-02-09 02:19:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:10,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:11,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:11,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866517270]
[2022-02-09 02:19:11,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866517270] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:11,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:11,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:11,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518923377]
[2022-02-09 02:19:11,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:11,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:11,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:11,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:11,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:11,067 INFO L87 Difference]: Start difference. First operand 1380 states and 5463 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:11,161 INFO L93 Difference]: Finished difference Result 2677 states and 9854 transitions.
[2022-02-09 02:19:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:11,167 INFO L225 Difference]: With dead ends: 2677
[2022-02-09 02:19:11,167 INFO L226 Difference]: Without dead ends: 2518
[2022-02-09 02:19:11,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:11,167 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:11,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:11,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states.
[2022-02-09 02:19:11,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1404.
[2022-02-09 02:19:11,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9536707056307914) internal successors, (5547), 1403 states have internal predecessors, (5547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5547 transitions.
[2022-02-09 02:19:11,194 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5547 transitions. Word has length 25
[2022-02-09 02:19:11,194 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:11,194 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5547 transitions.
[2022-02-09 02:19:11,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5547 transitions.
[2022-02-09 02:19:11,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:11,196 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:11,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:11,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323
[2022-02-09 02:19:11,196 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:11,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:11,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1328148595, now seen corresponding path program 320 times
[2022-02-09 02:19:11,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:11,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944571960]
[2022-02-09 02:19:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:11,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:11,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:11,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944571960]
[2022-02-09 02:19:11,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944571960] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:11,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:11,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:11,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714111384]
[2022-02-09 02:19:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:11,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:11,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:11,314 INFO L87 Difference]: Start difference. First operand 1404 states and 5547 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:11,433 INFO L93 Difference]: Finished difference Result 2707 states and 9947 transitions.
[2022-02-09 02:19:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:11,439 INFO L225 Difference]: With dead ends: 2707
[2022-02-09 02:19:11,439 INFO L226 Difference]: Without dead ends: 2502
[2022-02-09 02:19:11,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:11,439 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:11,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 158 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states.
[2022-02-09 02:19:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1388.
[2022-02-09 02:19:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.958904109589041) internal successors, (5491), 1387 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5491 transitions.
[2022-02-09 02:19:11,466 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5491 transitions. Word has length 25
[2022-02-09 02:19:11,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:11,466 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5491 transitions.
[2022-02-09 02:19:11,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5491 transitions.
[2022-02-09 02:19:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:11,469 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:11,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:11,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324
[2022-02-09 02:19:11,469 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -58033519, now seen corresponding path program 321 times
[2022-02-09 02:19:11,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:11,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500261922]
[2022-02-09 02:19:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:11,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:11,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:11,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500261922]
[2022-02-09 02:19:11,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500261922] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:11,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:11,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:11,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590100603]
[2022-02-09 02:19:11,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:11,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:11,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:11,591 INFO L87 Difference]: Start difference. First operand 1388 states and 5491 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:11,683 INFO L93 Difference]: Finished difference Result 2631 states and 9689 transitions.
[2022-02-09 02:19:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:11,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:11,689 INFO L225 Difference]: With dead ends: 2631
[2022-02-09 02:19:11,689 INFO L226 Difference]: Without dead ends: 2472
[2022-02-09 02:19:11,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:11,690 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:11,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 136 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:11,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states.
[2022-02-09 02:19:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1404.
[2022-02-09 02:19:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.947968638631504) internal successors, (5539), 1403 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5539 transitions.
[2022-02-09 02:19:11,715 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5539 transitions. Word has length 25
[2022-02-09 02:19:11,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:11,715 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5539 transitions.
[2022-02-09 02:19:11,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5539 transitions.
[2022-02-09 02:19:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:11,717 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:11,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:11,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325
[2022-02-09 02:19:11,718 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:11,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2000305519, now seen corresponding path program 322 times
[2022-02-09 02:19:11,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:11,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713663968]
[2022-02-09 02:19:11,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:11,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:11,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:11,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713663968]
[2022-02-09 02:19:11,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713663968] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:11,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:11,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:11,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525949935]
[2022-02-09 02:19:11,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:11,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:11,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:11,836 INFO L87 Difference]: Start difference. First operand 1404 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:11,949 INFO L93 Difference]: Finished difference Result 2519 states and 9352 transitions.
[2022-02-09 02:19:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:11,955 INFO L225 Difference]: With dead ends: 2519
[2022-02-09 02:19:11,955 INFO L226 Difference]: Without dead ends: 2328
[2022-02-09 02:19:11,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:11,955 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:11,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states.
[2022-02-09 02:19:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 1388.
[2022-02-09 02:19:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.953136265320836) internal successors, (5483), 1387 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5483 transitions.
[2022-02-09 02:19:11,979 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5483 transitions. Word has length 25
[2022-02-09 02:19:11,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:11,979 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5483 transitions.
[2022-02-09 02:19:11,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5483 transitions.
[2022-02-09 02:19:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:11,981 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:11,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:11,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326
[2022-02-09 02:19:11,981 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1359128435, now seen corresponding path program 323 times
[2022-02-09 02:19:11,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:11,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91146305]
[2022-02-09 02:19:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:11,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:12,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:12,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91146305]
[2022-02-09 02:19:12,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91146305] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:12,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:12,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:12,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020281138]
[2022-02-09 02:19:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:12,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:12,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:12,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:12,103 INFO L87 Difference]: Start difference. First operand 1388 states and 5483 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:12,218 INFO L93 Difference]: Finished difference Result 2669 states and 9826 transitions.
[2022-02-09 02:19:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:12,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:12,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:12,225 INFO L225 Difference]: With dead ends: 2669
[2022-02-09 02:19:12,225 INFO L226 Difference]: Without dead ends: 2480
[2022-02-09 02:19:12,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:12,225 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:12,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:12,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states.
[2022-02-09 02:19:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1412.
[2022-02-09 02:19:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9397590361445785) internal successors, (5559), 1411 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5559 transitions.
[2022-02-09 02:19:12,249 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5559 transitions. Word has length 25
[2022-02-09 02:19:12,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:12,250 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5559 transitions.
[2022-02-09 02:19:12,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5559 transitions.
[2022-02-09 02:19:12,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:12,252 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:12,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:12,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327
[2022-02-09 02:19:12,252 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 618176337, now seen corresponding path program 324 times
[2022-02-09 02:19:12,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:12,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538120084]
[2022-02-09 02:19:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:12,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:12,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:12,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538120084]
[2022-02-09 02:19:12,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538120084] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:12,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:12,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:12,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927356153]
[2022-02-09 02:19:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:12,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:12,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:12,394 INFO L87 Difference]: Start difference. First operand 1412 states and 5559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:12,509 INFO L93 Difference]: Finished difference Result 2527 states and 9372 transitions.
[2022-02-09 02:19:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:12,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:12,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:12,514 INFO L225 Difference]: With dead ends: 2527
[2022-02-09 02:19:12,514 INFO L226 Difference]: Without dead ends: 2320
[2022-02-09 02:19:12,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:12,515 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:12,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states.
[2022-02-09 02:19:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1380.
[2022-02-09 02:19:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.958665699782451) internal successors, (5459), 1379 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5459 transitions.
[2022-02-09 02:19:12,538 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5459 transitions. Word has length 25
[2022-02-09 02:19:12,538 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:12,538 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5459 transitions.
[2022-02-09 02:19:12,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5459 transitions.
[2022-02-09 02:19:12,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:12,540 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:12,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:12,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328
[2022-02-09 02:19:12,541 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:12,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:12,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1325160051, now seen corresponding path program 325 times
[2022-02-09 02:19:12,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:12,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341308849]
[2022-02-09 02:19:12,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:12,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:12,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:12,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341308849]
[2022-02-09 02:19:12,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341308849] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:12,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:12,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:12,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041163647]
[2022-02-09 02:19:12,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:12,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:12,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:12,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:12,662 INFO L87 Difference]: Start difference. First operand 1380 states and 5459 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:12,760 INFO L93 Difference]: Finished difference Result 2633 states and 9704 transitions.
[2022-02-09 02:19:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:12,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:12,765 INFO L225 Difference]: With dead ends: 2633
[2022-02-09 02:19:12,765 INFO L226 Difference]: Without dead ends: 2474
[2022-02-09 02:19:12,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:12,765 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 116 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:12,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:12,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states.
[2022-02-09 02:19:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1404.
[2022-02-09 02:19:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9508196721311477) internal successors, (5543), 1403 states have internal predecessors, (5543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions.
[2022-02-09 02:19:12,790 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25
[2022-02-09 02:19:12,790 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:12,790 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions.
[2022-02-09 02:19:12,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions.
[2022-02-09 02:19:12,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:12,792 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:12,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:12,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329
[2022-02-09 02:19:12,792 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:12,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:12,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1289310605, now seen corresponding path program 326 times
[2022-02-09 02:19:12,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:12,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141292817]
[2022-02-09 02:19:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:12,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:12,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:12,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141292817]
[2022-02-09 02:19:12,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141292817] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:12,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:12,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:12,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779169074]
[2022-02-09 02:19:12,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:12,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:12,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:12,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:12,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:12,913 INFO L87 Difference]: Start difference. First operand 1404 states and 5543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:13,026 INFO L93 Difference]: Finished difference Result 2657 states and 9780 transitions.
[2022-02-09 02:19:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:13,032 INFO L225 Difference]: With dead ends: 2657
[2022-02-09 02:19:13,032 INFO L226 Difference]: Without dead ends: 2458
[2022-02-09 02:19:13,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:13,032 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:13,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states.
[2022-02-09 02:19:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1388.
[2022-02-09 02:19:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9560201874549388) internal successors, (5487), 1387 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions.
[2022-02-09 02:19:13,072 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25
[2022-02-09 02:19:13,072 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:13,072 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions.
[2022-02-09 02:19:13,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions.
[2022-02-09 02:19:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:13,074 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:13,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:13,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330
[2022-02-09 02:19:13,074 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:13,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:13,075 INFO L85 PathProgramCache]: Analyzing trace with hash 478363089, now seen corresponding path program 327 times
[2022-02-09 02:19:13,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:13,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550185168]
[2022-02-09 02:19:13,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:13,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:13,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:13,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550185168]
[2022-02-09 02:19:13,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550185168] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:13,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:13,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:13,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303403186]
[2022-02-09 02:19:13,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:13,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:13,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:13,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:13,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:13,193 INFO L87 Difference]: Start difference. First operand 1388 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:13,294 INFO L93 Difference]: Finished difference Result 2577 states and 9492 transitions.
[2022-02-09 02:19:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:13,300 INFO L225 Difference]: With dead ends: 2577
[2022-02-09 02:19:13,300 INFO L226 Difference]: Without dead ends: 2418
[2022-02-09 02:19:13,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:13,300 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:13,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 150 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states.
[2022-02-09 02:19:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 1404.
[2022-02-09 02:19:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9451176051318604) internal successors, (5535), 1403 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5535 transitions.
[2022-02-09 02:19:13,327 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5535 transitions. Word has length 25
[2022-02-09 02:19:13,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:13,327 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5535 transitions.
[2022-02-09 02:19:13,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5535 transitions.
[2022-02-09 02:19:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:13,330 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:13,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:13,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331
[2022-02-09 02:19:13,330 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1120702067, now seen corresponding path program 328 times
[2022-02-09 02:19:13,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:13,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220441636]
[2022-02-09 02:19:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:13,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:13,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:13,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220441636]
[2022-02-09 02:19:13,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220441636] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:13,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:13,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:13,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056777741]
[2022-02-09 02:19:13,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:13,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:13,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:13,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:13,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:13,450 INFO L87 Difference]: Start difference. First operand 1404 states and 5535 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:13,567 INFO L93 Difference]: Finished difference Result 2465 states and 9155 transitions.
[2022-02-09 02:19:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:13,574 INFO L225 Difference]: With dead ends: 2465
[2022-02-09 02:19:13,574 INFO L226 Difference]: Without dead ends: 2274
[2022-02-09 02:19:13,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:13,574 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:13,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 157 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:13,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states.
[2022-02-09 02:19:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1388.
[2022-02-09 02:19:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.950252343186734) internal successors, (5479), 1387 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5479 transitions.
[2022-02-09 02:19:13,601 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5479 transitions. Word has length 25
[2022-02-09 02:19:13,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:13,601 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5479 transitions.
[2022-02-09 02:19:13,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5479 transitions.
[2022-02-09 02:19:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:13,603 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:13,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:13,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332
[2022-02-09 02:19:13,604 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:13,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:13,604 INFO L85 PathProgramCache]: Analyzing trace with hash 498071155, now seen corresponding path program 329 times
[2022-02-09 02:19:13,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:13,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637821911]
[2022-02-09 02:19:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:13,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:13,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:13,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637821911]
[2022-02-09 02:19:13,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637821911] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:13,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:13,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:13,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921987474]
[2022-02-09 02:19:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:13,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:13,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:13,722 INFO L87 Difference]: Start difference. First operand 1388 states and 5479 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:13,828 INFO L93 Difference]: Finished difference Result 2481 states and 9227 transitions.
[2022-02-09 02:19:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:13,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:13,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:13,833 INFO L225 Difference]: With dead ends: 2481
[2022-02-09 02:19:13,833 INFO L226 Difference]: Without dead ends: 2298
[2022-02-09 02:19:13,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:13,833 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:13,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states.
[2022-02-09 02:19:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 1412.
[2022-02-09 02:19:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9369241672572644) internal successors, (5555), 1411 states have internal predecessors, (5555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5555 transitions.
[2022-02-09 02:19:13,856 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5555 transitions. Word has length 25
[2022-02-09 02:19:13,856 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:13,857 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5555 transitions.
[2022-02-09 02:19:13,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5555 transitions.
[2022-02-09 02:19:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:13,859 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:13,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:13,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333
[2022-02-09 02:19:13,859 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:13,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1545265839, now seen corresponding path program 330 times
[2022-02-09 02:19:13,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:13,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259282034]
[2022-02-09 02:19:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:13,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:13,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:13,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259282034]
[2022-02-09 02:19:13,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259282034] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:13,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:13,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:13,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126778658]
[2022-02-09 02:19:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:13,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:13,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:13,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:13,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:13,981 INFO L87 Difference]: Start difference. First operand 1412 states and 5555 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:14,079 INFO L93 Difference]: Finished difference Result 2297 states and 8614 transitions.
[2022-02-09 02:19:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:14,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:14,084 INFO L225 Difference]: With dead ends: 2297
[2022-02-09 02:19:14,084 INFO L226 Difference]: Without dead ends: 2090
[2022-02-09 02:19:14,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:14,085 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:14,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 131 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states.
[2022-02-09 02:19:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1380.
[2022-02-09 02:19:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.9557650471356056) internal successors, (5455), 1379 states have internal predecessors, (5455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5455 transitions.
[2022-02-09 02:19:14,107 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5455 transitions. Word has length 25
[2022-02-09 02:19:14,107 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:14,107 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5455 transitions.
[2022-02-09 02:19:14,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5455 transitions.
[2022-02-09 02:19:14,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:14,109 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:14,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:14,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334
[2022-02-09 02:19:14,110 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:14,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:14,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2049264341, now seen corresponding path program 331 times
[2022-02-09 02:19:14,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:14,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829845224]
[2022-02-09 02:19:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:14,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:14,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:14,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829845224]
[2022-02-09 02:19:14,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829845224] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:14,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:14,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:14,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810400535]
[2022-02-09 02:19:14,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:14,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:14,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:14,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:14,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:14,226 INFO L87 Difference]: Start difference. First operand 1380 states and 5455 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:14,337 INFO L93 Difference]: Finished difference Result 2717 states and 10026 transitions.
[2022-02-09 02:19:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:14,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:14,343 INFO L225 Difference]: With dead ends: 2717
[2022-02-09 02:19:14,343 INFO L226 Difference]: Without dead ends: 2528
[2022-02-09 02:19:14,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:14,344 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:14,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 150 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:14,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states.
[2022-02-09 02:19:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1420.
[2022-02-09 02:19:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.945736434108527) internal successors, (5599), 1419 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5599 transitions.
[2022-02-09 02:19:14,370 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5599 transitions. Word has length 25
[2022-02-09 02:19:14,370 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:14,370 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5599 transitions.
[2022-02-09 02:19:14,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5599 transitions.
[2022-02-09 02:19:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:14,372 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:14,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:14,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335
[2022-02-09 02:19:14,372 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash 657119795, now seen corresponding path program 332 times
[2022-02-09 02:19:14,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:14,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477467323]
[2022-02-09 02:19:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:14,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:14,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:14,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477467323]
[2022-02-09 02:19:14,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477467323] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:14,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:14,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:14,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435470169]
[2022-02-09 02:19:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:14,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:14,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:14,489 INFO L87 Difference]: Start difference. First operand 1420 states and 5599 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:14,594 INFO L93 Difference]: Finished difference Result 2711 states and 9981 transitions.
[2022-02-09 02:19:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:14,601 INFO L225 Difference]: With dead ends: 2711
[2022-02-09 02:19:14,601 INFO L226 Difference]: Without dead ends: 2500
[2022-02-09 02:19:14,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:14,601 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:14,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 137 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:14,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states.
[2022-02-09 02:19:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1392.
[2022-02-09 02:19:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.953271028037383) internal successors, (5499), 1391 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5499 transitions.
[2022-02-09 02:19:14,628 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5499 transitions. Word has length 25
[2022-02-09 02:19:14,628 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:14,628 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5499 transitions.
[2022-02-09 02:19:14,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5499 transitions.
[2022-02-09 02:19:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:14,630 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:14,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:14,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336
[2022-02-09 02:19:14,630 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:14,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1202467379, now seen corresponding path program 333 times
[2022-02-09 02:19:14,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:14,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376774467]
[2022-02-09 02:19:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:14,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:14,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:14,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376774467]
[2022-02-09 02:19:14,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376774467] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:14,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:14,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:14,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653570174]
[2022-02-09 02:19:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:14,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:14,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:14,751 INFO L87 Difference]: Start difference. First operand 1392 states and 5499 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:14,875 INFO L93 Difference]: Finished difference Result 2619 states and 9649 transitions.
[2022-02-09 02:19:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:14,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:14,881 INFO L225 Difference]: With dead ends: 2619
[2022-02-09 02:19:14,881 INFO L226 Difference]: Without dead ends: 2430
[2022-02-09 02:19:14,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:14,882 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 95 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:14,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 163 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:14,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states.
[2022-02-09 02:19:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1416.
[2022-02-09 02:19:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.939929328621908) internal successors, (5575), 1415 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions.
[2022-02-09 02:19:14,908 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25
[2022-02-09 02:19:14,908 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:14,908 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions.
[2022-02-09 02:19:14,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions.
[2022-02-09 02:19:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:14,910 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:14,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:14,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337
[2022-02-09 02:19:14,911 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1248841037, now seen corresponding path program 334 times
[2022-02-09 02:19:14,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:14,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991824746]
[2022-02-09 02:19:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:14,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:15,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:15,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991824746]
[2022-02-09 02:19:15,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991824746] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:15,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:15,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:15,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684694699]
[2022-02-09 02:19:15,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:15,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:15,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:15,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:15,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:15,034 INFO L87 Difference]: Start difference. First operand 1416 states and 5575 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:15,146 INFO L93 Difference]: Finished difference Result 2477 states and 9195 transitions.
[2022-02-09 02:19:15,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:15,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:15,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:15,152 INFO L225 Difference]: With dead ends: 2477
[2022-02-09 02:19:15,152 INFO L226 Difference]: Without dead ends: 2278
[2022-02-09 02:19:15,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:15,152 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:15,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 151 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states.
[2022-02-09 02:19:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 1392.
[2022-02-09 02:19:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9446441409058233) internal successors, (5487), 1391 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5487 transitions.
[2022-02-09 02:19:15,178 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5487 transitions. Word has length 25
[2022-02-09 02:19:15,178 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:15,178 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5487 transitions.
[2022-02-09 02:19:15,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5487 transitions.
[2022-02-09 02:19:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:15,180 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:15,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:15,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338
[2022-02-09 02:19:15,180 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:15,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1566724753, now seen corresponding path program 335 times
[2022-02-09 02:19:15,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:15,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533541728]
[2022-02-09 02:19:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:15,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:15,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:15,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533541728]
[2022-02-09 02:19:15,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533541728] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:15,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:15,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:15,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163269639]
[2022-02-09 02:19:15,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:15,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:15,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:15,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:15,337 INFO L87 Difference]: Start difference. First operand 1392 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:15,464 INFO L93 Difference]: Finished difference Result 2485 states and 9235 transitions.
[2022-02-09 02:19:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:15,470 INFO L225 Difference]: With dead ends: 2485
[2022-02-09 02:19:15,470 INFO L226 Difference]: Without dead ends: 2302
[2022-02-09 02:19:15,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:15,470 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 93 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:15,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 154 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states.
[2022-02-09 02:19:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1416.
[2022-02-09 02:19:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9314487632508834) internal successors, (5563), 1415 states have internal predecessors, (5563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5563 transitions.
[2022-02-09 02:19:15,494 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5563 transitions. Word has length 25
[2022-02-09 02:19:15,494 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:15,494 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5563 transitions.
[2022-02-09 02:19:15,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5563 transitions.
[2022-02-09 02:19:15,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:15,496 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:15,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:15,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339
[2022-02-09 02:19:15,497 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:15,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1647179917, now seen corresponding path program 336 times
[2022-02-09 02:19:15,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:15,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636747749]
[2022-02-09 02:19:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:15,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:15,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:15,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636747749]
[2022-02-09 02:19:15,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636747749] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:15,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:15,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:15,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530843322]
[2022-02-09 02:19:15,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:15,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:15,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:15,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:15,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:15,618 INFO L87 Difference]: Start difference. First operand 1416 states and 5563 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:15,721 INFO L93 Difference]: Finished difference Result 2301 states and 8622 transitions.
[2022-02-09 02:19:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:15,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:15,726 INFO L225 Difference]: With dead ends: 2301
[2022-02-09 02:19:15,727 INFO L226 Difference]: Without dead ends: 2086
[2022-02-09 02:19:15,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:15,727 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 85 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:15,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 135 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states.
[2022-02-09 02:19:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1376.
[2022-02-09 02:19:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.96) internal successors, (5445), 1375 states have internal predecessors, (5445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5445 transitions.
[2022-02-09 02:19:15,751 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5445 transitions. Word has length 25
[2022-02-09 02:19:15,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:15,751 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5445 transitions.
[2022-02-09 02:19:15,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5445 transitions.
[2022-02-09 02:19:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:15,754 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:15,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:15,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340
[2022-02-09 02:19:15,754 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:15,754 INFO L85 PathProgramCache]: Analyzing trace with hash 80867255, now seen corresponding path program 337 times
[2022-02-09 02:19:15,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:15,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408853210]
[2022-02-09 02:19:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:15,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:15,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:15,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408853210]
[2022-02-09 02:19:15,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408853210] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:15,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:15,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:15,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035256926]
[2022-02-09 02:19:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:15,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:15,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:15,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:15,871 INFO L87 Difference]: Start difference. First operand 1376 states and 5445 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:15,987 INFO L93 Difference]: Finished difference Result 3065 states and 11402 transitions.
[2022-02-09 02:19:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:15,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:15,994 INFO L225 Difference]: With dead ends: 3065
[2022-02-09 02:19:15,994 INFO L226 Difference]: Without dead ends: 2876
[2022-02-09 02:19:15,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:15,994 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:15,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:15,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states.
[2022-02-09 02:19:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1430.
[2022-02-09 02:19:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 3.9580125962211334) internal successors, (5656), 1429 states have internal predecessors, (5656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5656 transitions.
[2022-02-09 02:19:16,022 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5656 transitions. Word has length 25
[2022-02-09 02:19:16,022 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:16,022 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5656 transitions.
[2022-02-09 02:19:16,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5656 transitions.
[2022-02-09 02:19:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:16,025 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:16,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:16,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341
[2022-02-09 02:19:16,025 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:16,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1311277291, now seen corresponding path program 338 times
[2022-02-09 02:19:16,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:16,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977728993]
[2022-02-09 02:19:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:16,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:16,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:16,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977728993]
[2022-02-09 02:19:16,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977728993] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:16,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:16,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:16,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601838497]
[2022-02-09 02:19:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:16,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:16,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:16,141 INFO L87 Difference]: Start difference. First operand 1430 states and 5656 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:16,257 INFO L93 Difference]: Finished difference Result 3059 states and 11357 transitions.
[2022-02-09 02:19:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:16,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:16,264 INFO L225 Difference]: With dead ends: 3059
[2022-02-09 02:19:16,265 INFO L226 Difference]: Without dead ends: 2848
[2022-02-09 02:19:16,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:16,265 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 114 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:16,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states.
[2022-02-09 02:19:16,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1402.
[2022-02-09 02:19:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9657387580299788) internal successors, (5556), 1401 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5556 transitions.
[2022-02-09 02:19:16,297 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5556 transitions. Word has length 25
[2022-02-09 02:19:16,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:16,297 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5556 transitions.
[2022-02-09 02:19:16,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5556 transitions.
[2022-02-09 02:19:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:16,300 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:16,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:16,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342
[2022-02-09 02:19:16,300 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash -765929707, now seen corresponding path program 339 times
[2022-02-09 02:19:16,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:16,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388937762]
[2022-02-09 02:19:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:16,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:16,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:16,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388937762]
[2022-02-09 02:19:16,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388937762] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:16,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:16,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:16,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219160119]
[2022-02-09 02:19:16,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:16,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:16,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:16,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:16,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:16,423 INFO L87 Difference]: Start difference. First operand 1402 states and 5556 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:16,536 INFO L93 Difference]: Finished difference Result 3053 states and 11346 transitions.
[2022-02-09 02:19:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:16,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:16,542 INFO L225 Difference]: With dead ends: 3053
[2022-02-09 02:19:16,542 INFO L226 Difference]: Without dead ends: 2864
[2022-02-09 02:19:16,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:16,543 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 118 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:16,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 133 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states.
[2022-02-09 02:19:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1426.
[2022-02-09 02:19:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 3.952280701754386) internal successors, (5632), 1425 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5632 transitions.
[2022-02-09 02:19:16,569 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5632 transitions. Word has length 25
[2022-02-09 02:19:16,569 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:16,569 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5632 transitions.
[2022-02-09 02:19:16,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5632 transitions.
[2022-02-09 02:19:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:16,571 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:16,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:16,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343
[2022-02-09 02:19:16,571 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:16,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1077729173, now seen corresponding path program 340 times
[2022-02-09 02:19:16,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:16,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536271715]
[2022-02-09 02:19:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:16,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:16,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:16,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536271715]
[2022-02-09 02:19:16,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536271715] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:16,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:16,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:16,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425248998]
[2022-02-09 02:19:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:16,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:16,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:16,693 INFO L87 Difference]: Start difference. First operand 1426 states and 5632 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:16,821 INFO L93 Difference]: Finished difference Result 3039 states and 11277 transitions.
[2022-02-09 02:19:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:16,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:16,829 INFO L225 Difference]: With dead ends: 3039
[2022-02-09 02:19:16,829 INFO L226 Difference]: Without dead ends: 2840
[2022-02-09 02:19:16,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:16,829 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:16,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 164 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states.
[2022-02-09 02:19:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 1402.
[2022-02-09 02:19:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9571734475374734) internal successors, (5544), 1401 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5544 transitions.
[2022-02-09 02:19:16,859 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5544 transitions. Word has length 25
[2022-02-09 02:19:16,859 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:16,859 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5544 transitions.
[2022-02-09 02:19:16,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5544 transitions.
[2022-02-09 02:19:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:16,861 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:16,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:16,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344
[2022-02-09 02:19:16,861 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:16,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:16,862 INFO L85 PathProgramCache]: Analyzing trace with hash -401672333, now seen corresponding path program 341 times
[2022-02-09 02:19:16,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:16,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17960092]
[2022-02-09 02:19:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:16,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:16,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:16,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17960092]
[2022-02-09 02:19:16,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17960092] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:16,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:16,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:16,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410298075]
[2022-02-09 02:19:16,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:16,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:16,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:16,980 INFO L87 Difference]: Start difference. First operand 1402 states and 5544 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:17,099 INFO L93 Difference]: Finished difference Result 3041 states and 11300 transitions.
[2022-02-09 02:19:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:17,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:17,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:17,106 INFO L225 Difference]: With dead ends: 3041
[2022-02-09 02:19:17,106 INFO L226 Difference]: Without dead ends: 2858
[2022-02-09 02:19:17,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:17,107 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:17,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 151 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:17,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states.
[2022-02-09 02:19:17,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 1426.
[2022-02-09 02:19:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 3.943859649122807) internal successors, (5620), 1425 states have internal predecessors, (5620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5620 transitions.
[2022-02-09 02:19:17,135 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5620 transitions. Word has length 25
[2022-02-09 02:19:17,136 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:17,136 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5620 transitions.
[2022-02-09 02:19:17,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5620 transitions.
[2022-02-09 02:19:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:17,138 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:17,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:17,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345
[2022-02-09 02:19:17,138 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash 679390293, now seen corresponding path program 342 times
[2022-02-09 02:19:17,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:17,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823284954]
[2022-02-09 02:19:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:17,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:17,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:17,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823284954]
[2022-02-09 02:19:17,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823284954] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:17,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:17,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:17,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581745767]
[2022-02-09 02:19:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:17,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:17,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:17,257 INFO L87 Difference]: Start difference. First operand 1426 states and 5620 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:17,381 INFO L93 Difference]: Finished difference Result 3033 states and 11248 transitions.
[2022-02-09 02:19:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:17,388 INFO L225 Difference]: With dead ends: 3033
[2022-02-09 02:19:17,388 INFO L226 Difference]: Without dead ends: 2822
[2022-02-09 02:19:17,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:17,389 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 93 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:17,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 159 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states.
[2022-02-09 02:19:17,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 1390.
[2022-02-09 02:19:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9640028797696183) internal successors, (5506), 1389 states have internal predecessors, (5506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5506 transitions.
[2022-02-09 02:19:17,416 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5506 transitions. Word has length 25
[2022-02-09 02:19:17,416 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:17,416 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5506 transitions.
[2022-02-09 02:19:17,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5506 transitions.
[2022-02-09 02:19:17,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:17,418 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:17,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:17,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346
[2022-02-09 02:19:17,419 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:17,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:17,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1882487659, now seen corresponding path program 343 times
[2022-02-09 02:19:17,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:17,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382777717]
[2022-02-09 02:19:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:17,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:17,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:17,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382777717]
[2022-02-09 02:19:17,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382777717] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:17,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:17,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:17,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059894716]
[2022-02-09 02:19:17,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:17,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:17,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:17,539 INFO L87 Difference]: Start difference. First operand 1390 states and 5506 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:17,673 INFO L93 Difference]: Finished difference Result 3096 states and 11479 transitions.
[2022-02-09 02:19:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:17,680 INFO L225 Difference]: With dead ends: 3096
[2022-02-09 02:19:17,680 INFO L226 Difference]: Without dead ends: 2907
[2022-02-09 02:19:17,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:17,680 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:17,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 152 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states.
[2022-02-09 02:19:17,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1448.
[2022-02-09 02:19:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9550794747753972) internal successors, (5723), 1447 states have internal predecessors, (5723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5723 transitions.
[2022-02-09 02:19:17,709 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5723 transitions. Word has length 25
[2022-02-09 02:19:17,709 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:17,709 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5723 transitions.
[2022-02-09 02:19:17,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5723 transitions.
[2022-02-09 02:19:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:17,711 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:17,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:17,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347
[2022-02-09 02:19:17,711 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1020335091, now seen corresponding path program 344 times
[2022-02-09 02:19:17,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:17,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808455818]
[2022-02-09 02:19:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:17,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:17,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:17,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808455818]
[2022-02-09 02:19:17,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808455818] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:17,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:17,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:17,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588791707]
[2022-02-09 02:19:17,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:17,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:17,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:17,828 INFO L87 Difference]: Start difference. First operand 1448 states and 5723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:17,937 INFO L93 Difference]: Finished difference Result 3090 states and 11434 transitions.
[2022-02-09 02:19:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:17,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:17,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:17,944 INFO L225 Difference]: With dead ends: 3090
[2022-02-09 02:19:17,944 INFO L226 Difference]: Without dead ends: 2879
[2022-02-09 02:19:17,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:17,945 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:17,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 128 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states.
[2022-02-09 02:19:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1420.
[2022-02-09 02:19:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9612403100775193) internal successors, (5621), 1419 states have internal predecessors, (5621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5621 transitions.
[2022-02-09 02:19:17,973 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5621 transitions. Word has length 25
[2022-02-09 02:19:17,973 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:17,973 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5621 transitions.
[2022-02-09 02:19:17,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5621 transitions.
[2022-02-09 02:19:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:17,975 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:17,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:17,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348
[2022-02-09 02:19:17,975 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:17,976 INFO L85 PathProgramCache]: Analyzing trace with hash 505592981, now seen corresponding path program 345 times
[2022-02-09 02:19:17,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:17,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942807952]
[2022-02-09 02:19:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:17,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:18,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:18,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942807952]
[2022-02-09 02:19:18,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942807952] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:18,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:18,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:18,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108279590]
[2022-02-09 02:19:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:18,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:18,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:18,114 INFO L87 Difference]: Start difference. First operand 1420 states and 5621 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:18,237 INFO L93 Difference]: Finished difference Result 3170 states and 11718 transitions.
[2022-02-09 02:19:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:18,244 INFO L225 Difference]: With dead ends: 3170
[2022-02-09 02:19:18,245 INFO L226 Difference]: Without dead ends: 2981
[2022-02-09 02:19:18,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:18,245 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 142 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:18,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 124 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states.
[2022-02-09 02:19:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1483.
[2022-02-09 02:19:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 3.932523616734143) internal successors, (5828), 1482 states have internal predecessors, (5828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 5828 transitions.
[2022-02-09 02:19:18,276 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 5828 transitions. Word has length 25
[2022-02-09 02:19:18,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:18,276 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 5828 transitions.
[2022-02-09 02:19:18,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 5828 transitions.
[2022-02-09 02:19:18,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:18,279 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:18,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:18,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349
[2022-02-09 02:19:18,279 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1237675285, now seen corresponding path program 346 times
[2022-02-09 02:19:18,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:18,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226286095]
[2022-02-09 02:19:18,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:18,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:18,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:18,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226286095]
[2022-02-09 02:19:18,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226286095] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:18,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:18,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:18,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973326948]
[2022-02-09 02:19:18,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:18,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:18,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:18,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:18,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:18,398 INFO L87 Difference]: Start difference. First operand 1483 states and 5828 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:18,505 INFO L93 Difference]: Finished difference Result 3203 states and 11801 transitions.
[2022-02-09 02:19:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:18,511 INFO L225 Difference]: With dead ends: 3203
[2022-02-09 02:19:18,511 INFO L226 Difference]: Without dead ends: 2918
[2022-02-09 02:19:18,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:18,511 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:18,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 142 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states.
[2022-02-09 02:19:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1420.
[2022-02-09 02:19:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9400986610288937) internal successors, (5591), 1419 states have internal predecessors, (5591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5591 transitions.
[2022-02-09 02:19:18,537 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5591 transitions. Word has length 25
[2022-02-09 02:19:18,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:18,537 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5591 transitions.
[2022-02-09 02:19:18,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5591 transitions.
[2022-02-09 02:19:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:18,539 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:18,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:18,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350
[2022-02-09 02:19:18,539 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash 869850355, now seen corresponding path program 347 times
[2022-02-09 02:19:18,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:18,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573791589]
[2022-02-09 02:19:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:18,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:18,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:18,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573791589]
[2022-02-09 02:19:18,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573791589] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:18,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:18,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:18,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999406710]
[2022-02-09 02:19:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:18,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:18,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:18,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:18,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:18,658 INFO L87 Difference]: Start difference. First operand 1420 states and 5591 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:18,784 INFO L93 Difference]: Finished difference Result 3139 states and 11596 transitions.
[2022-02-09 02:19:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:18,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:18,791 INFO L225 Difference]: With dead ends: 3139
[2022-02-09 02:19:18,791 INFO L226 Difference]: Without dead ends: 2956
[2022-02-09 02:19:18,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:18,791 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:18,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states.
[2022-02-09 02:19:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1464.
[2022-02-09 02:19:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9254955570745045) internal successors, (5743), 1463 states have internal predecessors, (5743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5743 transitions.
[2022-02-09 02:19:18,817 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5743 transitions. Word has length 25
[2022-02-09 02:19:18,817 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:18,817 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5743 transitions.
[2022-02-09 02:19:18,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:18,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5743 transitions.
[2022-02-09 02:19:18,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:18,820 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:18,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:18,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351
[2022-02-09 02:19:18,820 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash -199668651, now seen corresponding path program 348 times
[2022-02-09 02:19:18,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:18,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887369836]
[2022-02-09 02:19:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:18,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:18,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:18,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887369836]
[2022-02-09 02:19:18,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887369836] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:18,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:18,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:18,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132905279]
[2022-02-09 02:19:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:18,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:18,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:18,941 INFO L87 Difference]: Start difference. First operand 1464 states and 5743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:19,049 INFO L93 Difference]: Finished difference Result 3178 states and 11699 transitions.
[2022-02-09 02:19:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:19,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:19,056 INFO L225 Difference]: With dead ends: 3178
[2022-02-09 02:19:19,056 INFO L226 Difference]: Without dead ends: 2882
[2022-02-09 02:19:19,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:19,056 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 116 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:19,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 150 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:19,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states.
[2022-02-09 02:19:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1390.
[2022-02-09 02:19:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9539236861051115) internal successors, (5492), 1389 states have internal predecessors, (5492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5492 transitions.
[2022-02-09 02:19:19,082 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5492 transitions. Word has length 25
[2022-02-09 02:19:19,082 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:19,082 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5492 transitions.
[2022-02-09 02:19:19,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5492 transitions.
[2022-02-09 02:19:19,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:19,084 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:19,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:19,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352
[2022-02-09 02:19:19,084 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:19,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1555731571, now seen corresponding path program 349 times
[2022-02-09 02:19:19,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:19,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050439434]
[2022-02-09 02:19:19,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:19,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:19,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:19,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050439434]
[2022-02-09 02:19:19,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050439434] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:19,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:19,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:19,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333876968]
[2022-02-09 02:19:19,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:19,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:19,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:19,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:19,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:19,204 INFO L87 Difference]: Start difference. First operand 1390 states and 5492 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:19,312 INFO L93 Difference]: Finished difference Result 3038 states and 11232 transitions.
[2022-02-09 02:19:19,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:19,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:19,319 INFO L225 Difference]: With dead ends: 3038
[2022-02-09 02:19:19,320 INFO L226 Difference]: Without dead ends: 2849
[2022-02-09 02:19:19,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:19,320 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 130 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:19,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 129 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states.
[2022-02-09 02:19:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1442.
[2022-02-09 02:19:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1441 states have (on average 3.947258848022207) internal successors, (5688), 1441 states have internal predecessors, (5688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 5688 transitions.
[2022-02-09 02:19:19,348 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 5688 transitions. Word has length 25
[2022-02-09 02:19:19,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:19,348 INFO L470 AbstractCegarLoop]: Abstraction has 1442 states and 5688 transitions.
[2022-02-09 02:19:19,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 5688 transitions.
[2022-02-09 02:19:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:19,350 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:19,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:19,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353
[2022-02-09 02:19:19,350 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:19,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -895576845, now seen corresponding path program 350 times
[2022-02-09 02:19:19,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:19,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838347394]
[2022-02-09 02:19:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:19,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:19,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:19,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838347394]
[2022-02-09 02:19:19,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838347394] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:19,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:19,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:19,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553172818]
[2022-02-09 02:19:19,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:19,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:19,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:19,481 INFO L87 Difference]: Start difference. First operand 1442 states and 5688 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:19,600 INFO L93 Difference]: Finished difference Result 3024 states and 11163 transitions.
[2022-02-09 02:19:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:19,606 INFO L225 Difference]: With dead ends: 3024
[2022-02-09 02:19:19,606 INFO L226 Difference]: Without dead ends: 2825
[2022-02-09 02:19:19,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:19,607 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:19,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 145 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states.
[2022-02-09 02:19:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1418.
[2022-02-09 02:19:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.952011291460833) internal successors, (5600), 1417 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5600 transitions.
[2022-02-09 02:19:19,634 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5600 transitions. Word has length 25
[2022-02-09 02:19:19,634 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:19,634 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5600 transitions.
[2022-02-09 02:19:19,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5600 transitions.
[2022-02-09 02:19:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:19,637 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:19,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:19,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354
[2022-02-09 02:19:19,637 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 938208213, now seen corresponding path program 351 times
[2022-02-09 02:19:19,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:19,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796579020]
[2022-02-09 02:19:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:19,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:19,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:19,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796579020]
[2022-02-09 02:19:19,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796579020] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:19,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:19,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:19,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358786831]
[2022-02-09 02:19:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:19,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:19,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:19,759 INFO L87 Difference]: Start difference. First operand 1418 states and 5600 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:19,903 INFO L93 Difference]: Finished difference Result 3061 states and 11279 transitions.
[2022-02-09 02:19:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:19,911 INFO L225 Difference]: With dead ends: 3061
[2022-02-09 02:19:19,911 INFO L226 Difference]: Without dead ends: 2872
[2022-02-09 02:19:19,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:19,911 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 98 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:19,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 169 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states.
[2022-02-09 02:19:19,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1481.
[2022-02-09 02:19:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.9236486486486486) internal successors, (5807), 1480 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5807 transitions.
[2022-02-09 02:19:19,942 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5807 transitions. Word has length 25
[2022-02-09 02:19:19,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:19,942 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5807 transitions.
[2022-02-09 02:19:19,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:19,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5807 transitions.
[2022-02-09 02:19:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:19,944 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:19,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:19,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355
[2022-02-09 02:19:19,945 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:19,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:19,945 INFO L85 PathProgramCache]: Analyzing trace with hash -785386253, now seen corresponding path program 352 times
[2022-02-09 02:19:19,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:19,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956793013]
[2022-02-09 02:19:19,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:19,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:20,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:20,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956793013]
[2022-02-09 02:19:20,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956793013] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:20,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:20,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:20,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541565682]
[2022-02-09 02:19:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:20,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:20,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:20,065 INFO L87 Difference]: Start difference. First operand 1481 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:20,180 INFO L93 Difference]: Finished difference Result 3094 states and 11362 transitions.
[2022-02-09 02:19:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:20,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:20,187 INFO L225 Difference]: With dead ends: 3094
[2022-02-09 02:19:20,187 INFO L226 Difference]: Without dead ends: 2809
[2022-02-09 02:19:20,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:20,187 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:20,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states.
[2022-02-09 02:19:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 1418.
[2022-02-09 02:19:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.9322512350035286) internal successors, (5572), 1417 states have internal predecessors, (5572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5572 transitions.
[2022-02-09 02:19:20,214 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5572 transitions. Word has length 25
[2022-02-09 02:19:20,214 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:20,214 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5572 transitions.
[2022-02-09 02:19:20,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5572 transitions.
[2022-02-09 02:19:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:20,217 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:20,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:20,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356
[2022-02-09 02:19:20,217 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1739119245, now seen corresponding path program 353 times
[2022-02-09 02:19:20,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:20,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047054700]
[2022-02-09 02:19:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:20,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:20,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:20,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047054700]
[2022-02-09 02:19:20,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047054700] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:20,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:20,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:20,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945117467]
[2022-02-09 02:19:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:20,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:20,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:20,335 INFO L87 Difference]: Start difference. First operand 1418 states and 5572 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:20,450 INFO L93 Difference]: Finished difference Result 3010 states and 11087 transitions.
[2022-02-09 02:19:20,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:20,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:20,457 INFO L225 Difference]: With dead ends: 3010
[2022-02-09 02:19:20,457 INFO L226 Difference]: Without dead ends: 2835
[2022-02-09 02:19:20,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:20,458 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 111 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:20,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states.
[2022-02-09 02:19:20,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1458.
[2022-02-09 02:19:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9203843514070007) internal successors, (5712), 1457 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5712 transitions.
[2022-02-09 02:19:20,486 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5712 transitions. Word has length 25
[2022-02-09 02:19:20,486 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:20,486 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5712 transitions.
[2022-02-09 02:19:20,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5712 transitions.
[2022-02-09 02:19:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:20,488 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:20,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:20,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357
[2022-02-09 02:19:20,488 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:20,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1520767659, now seen corresponding path program 354 times
[2022-02-09 02:19:20,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:20,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418994441]
[2022-02-09 02:19:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:20,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:20,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:20,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418994441]
[2022-02-09 02:19:20,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418994441] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:20,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:20,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:20,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103243563]
[2022-02-09 02:19:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:20,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:20,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:20,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:20,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:20,610 INFO L87 Difference]: Start difference. First operand 1458 states and 5712 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:20,727 INFO L93 Difference]: Finished difference Result 2962 states and 10887 transitions.
[2022-02-09 02:19:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:20,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:20,734 INFO L225 Difference]: With dead ends: 2962
[2022-02-09 02:19:20,734 INFO L226 Difference]: Without dead ends: 2672
[2022-02-09 02:19:20,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:20,734 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 95 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:20,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 155 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states.
[2022-02-09 02:19:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1390.
[2022-02-09 02:19:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9438444924406046) internal successors, (5478), 1389 states have internal predecessors, (5478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5478 transitions.
[2022-02-09 02:19:20,760 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5478 transitions. Word has length 25
[2022-02-09 02:19:20,760 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:20,760 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5478 transitions.
[2022-02-09 02:19:20,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5478 transitions.
[2022-02-09 02:19:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:20,762 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:20,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:20,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358
[2022-02-09 02:19:20,762 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:20,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1900086737, now seen corresponding path program 355 times
[2022-02-09 02:19:20,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:20,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494298841]
[2022-02-09 02:19:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:20,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:20,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:20,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494298841]
[2022-02-09 02:19:20,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494298841] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:20,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:20,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:20,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169528640]
[2022-02-09 02:19:20,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:20,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:20,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:20,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:20,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:20,884 INFO L87 Difference]: Start difference. First operand 1390 states and 5478 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:20,997 INFO L93 Difference]: Finished difference Result 2993 states and 11081 transitions.
[2022-02-09 02:19:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:21,004 INFO L225 Difference]: With dead ends: 2993
[2022-02-09 02:19:21,005 INFO L226 Difference]: Without dead ends: 2810
[2022-02-09 02:19:21,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:21,005 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:21,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 134 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-02-09 02:19:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1434.
[2022-02-09 02:19:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1433 states have (on average 3.939986043265876) internal successors, (5646), 1433 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 5646 transitions.
[2022-02-09 02:19:21,033 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 5646 transitions. Word has length 25
[2022-02-09 02:19:21,033 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:21,033 INFO L470 AbstractCegarLoop]: Abstraction has 1434 states and 5646 transitions.
[2022-02-09 02:19:21,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 5646 transitions.
[2022-02-09 02:19:21,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:21,035 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:21,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:21,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359
[2022-02-09 02:19:21,036 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1313817933, now seen corresponding path program 356 times
[2022-02-09 02:19:21,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:21,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669862401]
[2022-02-09 02:19:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:21,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:21,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:21,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669862401]
[2022-02-09 02:19:21,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669862401] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:21,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:21,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:21,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129100700]
[2022-02-09 02:19:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:21,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:21,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:21,156 INFO L87 Difference]: Start difference. First operand 1434 states and 5646 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:21,273 INFO L93 Difference]: Finished difference Result 2985 states and 11029 transitions.
[2022-02-09 02:19:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:21,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:21,280 INFO L225 Difference]: With dead ends: 2985
[2022-02-09 02:19:21,280 INFO L226 Difference]: Without dead ends: 2786
[2022-02-09 02:19:21,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:21,281 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:21,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 148 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:21,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states.
[2022-02-09 02:19:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1410.
[2022-02-09 02:19:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 3.944641589779986) internal successors, (5558), 1409 states have internal predecessors, (5558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5558 transitions.
[2022-02-09 02:19:21,310 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5558 transitions. Word has length 25
[2022-02-09 02:19:21,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:21,311 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5558 transitions.
[2022-02-09 02:19:21,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5558 transitions.
[2022-02-09 02:19:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:21,313 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:21,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:21,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360
[2022-02-09 02:19:21,313 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:21,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1282563379, now seen corresponding path program 357 times
[2022-02-09 02:19:21,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:21,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448192585]
[2022-02-09 02:19:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:21,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:21,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:21,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448192585]
[2022-02-09 02:19:21,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448192585] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:21,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:21,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:21,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828221528]
[2022-02-09 02:19:21,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:21,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:21,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:21,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:21,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:21,434 INFO L87 Difference]: Start difference. First operand 1410 states and 5558 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:21,553 INFO L93 Difference]: Finished difference Result 2921 states and 10793 transitions.
[2022-02-09 02:19:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:21,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:21,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:21,560 INFO L225 Difference]: With dead ends: 2921
[2022-02-09 02:19:21,560 INFO L226 Difference]: Without dead ends: 2738
[2022-02-09 02:19:21,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:21,560 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:21,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 151 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:21,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states.
[2022-02-09 02:19:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1454.
[2022-02-09 02:19:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.9298004129387474) internal successors, (5710), 1453 states have internal predecessors, (5710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5710 transitions.
[2022-02-09 02:19:21,587 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5710 transitions. Word has length 25
[2022-02-09 02:19:21,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:21,587 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5710 transitions.
[2022-02-09 02:19:21,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5710 transitions.
[2022-02-09 02:19:21,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:21,589 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:21,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:21,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361
[2022-02-09 02:19:21,589 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2052334899, now seen corresponding path program 358 times
[2022-02-09 02:19:21,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:21,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201251367]
[2022-02-09 02:19:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:21,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:21,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:21,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201251367]
[2022-02-09 02:19:21,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201251367] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:21,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:21,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:21,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762225248]
[2022-02-09 02:19:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:21,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:21,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:21,712 INFO L87 Difference]: Start difference. First operand 1454 states and 5710 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:21,820 INFO L93 Difference]: Finished difference Result 2960 states and 10896 transitions.
[2022-02-09 02:19:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:21,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:21,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:21,828 INFO L225 Difference]: With dead ends: 2960
[2022-02-09 02:19:21,828 INFO L226 Difference]: Without dead ends: 2694
[2022-02-09 02:19:21,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:21,828 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:21,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states.
[2022-02-09 02:19:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1410.
[2022-02-09 02:19:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 3.930447125621008) internal successors, (5538), 1409 states have internal predecessors, (5538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5538 transitions.
[2022-02-09 02:19:21,858 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5538 transitions. Word has length 25
[2022-02-09 02:19:21,858 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:21,858 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5538 transitions.
[2022-02-09 02:19:21,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5538 transitions.
[2022-02-09 02:19:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:21,861 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:21,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:21,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362
[2022-02-09 02:19:21,861 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:21,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1670568341, now seen corresponding path program 359 times
[2022-02-09 02:19:21,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:21,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635983386]
[2022-02-09 02:19:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:21,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:21,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:21,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635983386]
[2022-02-09 02:19:21,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635983386] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:21,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:21,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:21,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622271761]
[2022-02-09 02:19:21,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:21,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:21,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:21,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:21,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:21,985 INFO L87 Difference]: Start difference. First operand 1410 states and 5538 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:22,115 INFO L93 Difference]: Finished difference Result 2861 states and 10537 transitions.
[2022-02-09 02:19:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:22,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:22,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:22,121 INFO L225 Difference]: With dead ends: 2861
[2022-02-09 02:19:22,122 INFO L226 Difference]: Without dead ends: 2686
[2022-02-09 02:19:22,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:22,122 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 99 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:22,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 148 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states.
[2022-02-09 02:19:22,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1450.
[2022-02-09 02:19:22,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9185645272601795) internal successors, (5678), 1449 states have internal predecessors, (5678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5678 transitions.
[2022-02-09 02:19:22,150 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5678 transitions. Word has length 25
[2022-02-09 02:19:22,150 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:22,150 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5678 transitions.
[2022-02-09 02:19:22,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5678 transitions.
[2022-02-09 02:19:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:22,152 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:22,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:22,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363
[2022-02-09 02:19:22,152 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -150467085, now seen corresponding path program 360 times
[2022-02-09 02:19:22,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:22,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170720610]
[2022-02-09 02:19:22,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:22,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:22,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:22,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170720610]
[2022-02-09 02:19:22,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170720610] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:22,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:22,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:22,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397426496]
[2022-02-09 02:19:22,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:22,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:22,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:22,270 INFO L87 Difference]: Start difference. First operand 1450 states and 5678 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:22,378 INFO L93 Difference]: Finished difference Result 2813 states and 10337 transitions.
[2022-02-09 02:19:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:22,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:22,384 INFO L225 Difference]: With dead ends: 2813
[2022-02-09 02:19:22,384 INFO L226 Difference]: Without dead ends: 2511
[2022-02-09 02:19:22,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:22,384 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 94 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:22,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 140 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states.
[2022-02-09 02:19:22,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 1370.
[2022-02-09 02:19:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9656683710737766) internal successors, (5429), 1369 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5429 transitions.
[2022-02-09 02:19:22,412 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5429 transitions. Word has length 25
[2022-02-09 02:19:22,412 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:22,412 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5429 transitions.
[2022-02-09 02:19:22,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5429 transitions.
[2022-02-09 02:19:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:22,415 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:22,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:22,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364
[2022-02-09 02:19:22,415 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash -789015661, now seen corresponding path program 361 times
[2022-02-09 02:19:22,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:22,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402828856]
[2022-02-09 02:19:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:22,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:22,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:22,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402828856]
[2022-02-09 02:19:22,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402828856] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:22,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:22,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:22,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056316543]
[2022-02-09 02:19:22,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:22,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:22,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:22,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:22,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:22,533 INFO L87 Difference]: Start difference. First operand 1370 states and 5429 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:22,648 INFO L93 Difference]: Finished difference Result 2920 states and 10769 transitions.
[2022-02-09 02:19:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:22,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:22,655 INFO L225 Difference]: With dead ends: 2920
[2022-02-09 02:19:22,655 INFO L226 Difference]: Without dead ends: 2761
[2022-02-09 02:19:22,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:22,655 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:22,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:22,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states.
[2022-02-09 02:19:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1418.
[2022-02-09 02:19:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.961185603387438) internal successors, (5613), 1417 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5613 transitions.
[2022-02-09 02:19:22,684 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5613 transitions. Word has length 25
[2022-02-09 02:19:22,684 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:22,684 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5613 transitions.
[2022-02-09 02:19:22,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5613 transitions.
[2022-02-09 02:19:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:22,686 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:22,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:22,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365
[2022-02-09 02:19:22,686 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1797313645, now seen corresponding path program 362 times
[2022-02-09 02:19:22,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:22,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876669251]
[2022-02-09 02:19:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:22,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:22,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:22,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876669251]
[2022-02-09 02:19:22,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876669251] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:22,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:22,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:22,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050939961]
[2022-02-09 02:19:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:22,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:22,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:22,807 INFO L87 Difference]: Start difference. First operand 1418 states and 5613 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:22,909 INFO L93 Difference]: Finished difference Result 2983 states and 10976 transitions.
[2022-02-09 02:19:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:22,916 INFO L225 Difference]: With dead ends: 2983
[2022-02-09 02:19:22,916 INFO L226 Difference]: Without dead ends: 2729
[2022-02-09 02:19:22,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:22,916 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:22,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states.
[2022-02-09 02:19:22,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1386.
[2022-02-09 02:19:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.96028880866426) internal successors, (5485), 1385 states have internal predecessors, (5485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5485 transitions.
[2022-02-09 02:19:22,942 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5485 transitions. Word has length 25
[2022-02-09 02:19:22,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:22,943 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5485 transitions.
[2022-02-09 02:19:22,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:22,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5485 transitions.
[2022-02-09 02:19:22,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:22,945 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:22,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:22,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366
[2022-02-09 02:19:22,945 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:22,945 INFO L85 PathProgramCache]: Analyzing trace with hash 200017845, now seen corresponding path program 363 times
[2022-02-09 02:19:22,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:22,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079684880]
[2022-02-09 02:19:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:22,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:23,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:23,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079684880]
[2022-02-09 02:19:23,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079684880] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:23,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:23,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:23,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782637000]
[2022-02-09 02:19:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:23,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:23,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:23,068 INFO L87 Difference]: Start difference. First operand 1386 states and 5485 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:23,173 INFO L93 Difference]: Finished difference Result 2869 states and 10570 transitions.
[2022-02-09 02:19:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:23,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:23,179 INFO L225 Difference]: With dead ends: 2869
[2022-02-09 02:19:23,179 INFO L226 Difference]: Without dead ends: 2710
[2022-02-09 02:19:23,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:23,179 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:23,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 162 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:23,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states.
[2022-02-09 02:19:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1402.
[2022-02-09 02:19:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9493219129193435) internal successors, (5533), 1401 states have internal predecessors, (5533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5533 transitions.
[2022-02-09 02:19:23,205 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5533 transitions. Word has length 25
[2022-02-09 02:19:23,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:23,205 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5533 transitions.
[2022-02-09 02:19:23,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5533 transitions.
[2022-02-09 02:19:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:23,208 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:23,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:23,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367
[2022-02-09 02:19:23,208 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:23,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1208315829, now seen corresponding path program 364 times
[2022-02-09 02:19:23,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:23,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419341413]
[2022-02-09 02:19:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:23,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:23,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:23,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419341413]
[2022-02-09 02:19:23,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419341413] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:23,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:23,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:23,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215122847]
[2022-02-09 02:19:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:23,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:23,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:23,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:23,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:23,328 INFO L87 Difference]: Start difference. First operand 1402 states and 5533 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:23,440 INFO L93 Difference]: Finished difference Result 2897 states and 10658 transitions.
[2022-02-09 02:19:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:23,446 INFO L225 Difference]: With dead ends: 2897
[2022-02-09 02:19:23,446 INFO L226 Difference]: Without dead ends: 2694
[2022-02-09 02:19:23,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:23,446 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:23,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:23,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states.
[2022-02-09 02:19:23,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1386.
[2022-02-09 02:19:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.954512635379061) internal successors, (5477), 1385 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions.
[2022-02-09 02:19:23,471 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25
[2022-02-09 02:19:23,471 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:23,471 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions.
[2022-02-09 02:19:23,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions.
[2022-02-09 02:19:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:23,473 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:23,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:23,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368
[2022-02-09 02:19:23,473 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:23,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1398405195, now seen corresponding path program 365 times
[2022-02-09 02:19:23,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:23,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401139419]
[2022-02-09 02:19:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:23,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:23,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:23,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401139419]
[2022-02-09 02:19:23,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401139419] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:23,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:23,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:23,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048996914]
[2022-02-09 02:19:23,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:23,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:23,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:23,594 INFO L87 Difference]: Start difference. First operand 1386 states and 5477 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:23,702 INFO L93 Difference]: Finished difference Result 2990 states and 11012 transitions.
[2022-02-09 02:19:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:23,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:23,709 INFO L225 Difference]: With dead ends: 2990
[2022-02-09 02:19:23,710 INFO L226 Difference]: Without dead ends: 2803
[2022-02-09 02:19:23,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:23,710 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 119 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:23,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 139 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states.
[2022-02-09 02:19:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1432.
[2022-02-09 02:19:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9371069182389937) internal successors, (5634), 1431 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5634 transitions.
[2022-02-09 02:19:23,736 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5634 transitions. Word has length 25
[2022-02-09 02:19:23,736 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:23,736 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5634 transitions.
[2022-02-09 02:19:23,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5634 transitions.
[2022-02-09 02:19:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:23,738 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:23,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:23,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369
[2022-02-09 02:19:23,738 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1751544685, now seen corresponding path program 366 times
[2022-02-09 02:19:23,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:23,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297326594]
[2022-02-09 02:19:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:23,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:23,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:23,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297326594]
[2022-02-09 02:19:23,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297326594] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:23,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:23,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:23,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792200847]
[2022-02-09 02:19:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:23,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:23,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:23,859 INFO L87 Difference]: Start difference. First operand 1432 states and 5634 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:23,960 INFO L93 Difference]: Finished difference Result 3025 states and 11101 transitions.
[2022-02-09 02:19:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:23,967 INFO L225 Difference]: With dead ends: 3025
[2022-02-09 02:19:23,967 INFO L226 Difference]: Without dead ends: 2741
[2022-02-09 02:19:23,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:23,968 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:23,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 144 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states.
[2022-02-09 02:19:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1370.
[2022-02-09 02:19:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.959824689554419) internal successors, (5421), 1369 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5421 transitions.
[2022-02-09 02:19:23,998 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5421 transitions. Word has length 25
[2022-02-09 02:19:23,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:23,998 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5421 transitions.
[2022-02-09 02:19:23,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:23,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5421 transitions.
[2022-02-09 02:19:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:24,000 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:24,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:24,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370
[2022-02-09 02:19:24,001 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash 920586101, now seen corresponding path program 367 times
[2022-02-09 02:19:24,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:24,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193563141]
[2022-02-09 02:19:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:24,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:24,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:24,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193563141]
[2022-02-09 02:19:24,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193563141] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:24,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:24,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:24,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132838174]
[2022-02-09 02:19:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:24,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:24,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:24,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:24,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:24,126 INFO L87 Difference]: Start difference. First operand 1370 states and 5421 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:24,238 INFO L93 Difference]: Finished difference Result 2914 states and 10742 transitions.
[2022-02-09 02:19:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:24,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:24,246 INFO L225 Difference]: With dead ends: 2914
[2022-02-09 02:19:24,246 INFO L226 Difference]: Without dead ends: 2755
[2022-02-09 02:19:24,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:24,246 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 121 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:24,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 139 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states.
[2022-02-09 02:19:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1418.
[2022-02-09 02:19:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.9555398729710656) internal successors, (5605), 1417 states have internal predecessors, (5605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5605 transitions.
[2022-02-09 02:19:24,273 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5605 transitions. Word has length 25
[2022-02-09 02:19:24,273 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:24,273 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5605 transitions.
[2022-02-09 02:19:24,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5605 transitions.
[2022-02-09 02:19:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:24,275 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:24,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:24,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371
[2022-02-09 02:19:24,275 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:24,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:24,275 INFO L85 PathProgramCache]: Analyzing trace with hash -87711883, now seen corresponding path program 368 times
[2022-02-09 02:19:24,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:24,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75827204]
[2022-02-09 02:19:24,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:24,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:24,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:24,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75827204]
[2022-02-09 02:19:24,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75827204] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:24,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:24,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:24,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83326857]
[2022-02-09 02:19:24,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:24,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:24,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:24,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:24,393 INFO L87 Difference]: Start difference. First operand 1418 states and 5605 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:24,517 INFO L93 Difference]: Finished difference Result 2977 states and 10949 transitions.
[2022-02-09 02:19:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:24,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:24,527 INFO L225 Difference]: With dead ends: 2977
[2022-02-09 02:19:24,527 INFO L226 Difference]: Without dead ends: 2723
[2022-02-09 02:19:24,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:24,528 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:24,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:24,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states.
[2022-02-09 02:19:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1386.
[2022-02-09 02:19:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.954512635379061) internal successors, (5477), 1385 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions.
[2022-02-09 02:19:24,567 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25
[2022-02-09 02:19:24,567 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:24,567 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions.
[2022-02-09 02:19:24,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions.
[2022-02-09 02:19:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:24,570 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:24,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:24,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372
[2022-02-09 02:19:24,571 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash 926338869, now seen corresponding path program 369 times
[2022-02-09 02:19:24,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:24,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018545293]
[2022-02-09 02:19:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:24,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:24,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:24,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018545293]
[2022-02-09 02:19:24,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018545293] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:24,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:24,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:24,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937794834]
[2022-02-09 02:19:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:24,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:24,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:24,713 INFO L87 Difference]: Start difference. First operand 1386 states and 5477 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:24,814 INFO L93 Difference]: Finished difference Result 2859 states and 10531 transitions.
[2022-02-09 02:19:24,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:24,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:24,820 INFO L225 Difference]: With dead ends: 2859
[2022-02-09 02:19:24,820 INFO L226 Difference]: Without dead ends: 2700
[2022-02-09 02:19:24,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:24,821 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:24,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states.
[2022-02-09 02:19:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 1402.
[2022-02-09 02:19:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9436117059243396) internal successors, (5525), 1401 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5525 transitions.
[2022-02-09 02:19:24,848 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5525 transitions. Word has length 25
[2022-02-09 02:19:24,848 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:24,848 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5525 transitions.
[2022-02-09 02:19:24,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5525 transitions.
[2022-02-09 02:19:24,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:24,850 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:24,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:24,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373
[2022-02-09 02:19:24,851 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:24,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1688131787, now seen corresponding path program 370 times
[2022-02-09 02:19:24,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:24,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830429301]
[2022-02-09 02:19:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:24,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:24,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:24,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830429301]
[2022-02-09 02:19:24,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830429301] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:24,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:24,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:24,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220962071]
[2022-02-09 02:19:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:24,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:24,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:24,970 INFO L87 Difference]: Start difference. First operand 1402 states and 5525 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:25,080 INFO L93 Difference]: Finished difference Result 2883 states and 10607 transitions.
[2022-02-09 02:19:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:25,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:25,087 INFO L225 Difference]: With dead ends: 2883
[2022-02-09 02:19:25,087 INFO L226 Difference]: Without dead ends: 2684
[2022-02-09 02:19:25,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:25,087 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 114 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:25,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 139 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:25,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states.
[2022-02-09 02:19:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1386.
[2022-02-09 02:19:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.948736462093863) internal successors, (5469), 1385 states have internal predecessors, (5469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5469 transitions.
[2022-02-09 02:19:25,115 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5469 transitions. Word has length 25
[2022-02-09 02:19:25,115 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:25,115 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5469 transitions.
[2022-02-09 02:19:25,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5469 transitions.
[2022-02-09 02:19:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:25,117 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:25,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:25,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374
[2022-02-09 02:19:25,117 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash 114485, now seen corresponding path program 371 times
[2022-02-09 02:19:25,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:25,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371938173]
[2022-02-09 02:19:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:25,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:25,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:25,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371938173]
[2022-02-09 02:19:25,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371938173] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:25,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:25,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:25,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54069629]
[2022-02-09 02:19:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:25,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:25,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:25,237 INFO L87 Difference]: Start difference. First operand 1386 states and 5469 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:25,359 INFO L93 Difference]: Finished difference Result 2974 states and 10954 transitions.
[2022-02-09 02:19:25,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:25,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:25,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:25,365 INFO L225 Difference]: With dead ends: 2974
[2022-02-09 02:19:25,365 INFO L226 Difference]: Without dead ends: 2791
[2022-02-09 02:19:25,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:25,365 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:25,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states.
[2022-02-09 02:19:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1430.
[2022-02-09 02:19:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 3.933519944016795) internal successors, (5621), 1429 states have internal predecessors, (5621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5621 transitions.
[2022-02-09 02:19:25,392 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5621 transitions. Word has length 25
[2022-02-09 02:19:25,392 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:25,392 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5621 transitions.
[2022-02-09 02:19:25,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5621 transitions.
[2022-02-09 02:19:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:25,394 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:25,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:25,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375
[2022-02-09 02:19:25,394 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1004217453, now seen corresponding path program 372 times
[2022-02-09 02:19:25,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:25,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760476468]
[2022-02-09 02:19:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:25,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:25,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:25,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760476468]
[2022-02-09 02:19:25,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760476468] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:25,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:25,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:25,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474448172]
[2022-02-09 02:19:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:25,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:25,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:25,516 INFO L87 Difference]: Start difference. First operand 1430 states and 5621 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:25,623 INFO L93 Difference]: Finished difference Result 3013 states and 11057 transitions.
[2022-02-09 02:19:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:25,630 INFO L225 Difference]: With dead ends: 3013
[2022-02-09 02:19:25,630 INFO L226 Difference]: Without dead ends: 2731
[2022-02-09 02:19:25,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:25,630 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:25,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states.
[2022-02-09 02:19:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1370.
[2022-02-09 02:19:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.953981008035062) internal successors, (5413), 1369 states have internal predecessors, (5413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5413 transitions.
[2022-02-09 02:19:25,657 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5413 transitions. Word has length 25
[2022-02-09 02:19:25,657 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:25,657 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5413 transitions.
[2022-02-09 02:19:25,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5413 transitions.
[2022-02-09 02:19:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:25,659 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:25,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:25,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376
[2022-02-09 02:19:25,659 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:25,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:25,659 INFO L85 PathProgramCache]: Analyzing trace with hash 461951703, now seen corresponding path program 373 times
[2022-02-09 02:19:25,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:25,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414396252]
[2022-02-09 02:19:25,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:25,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:25,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:25,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414396252]
[2022-02-09 02:19:25,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414396252] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:25,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:25,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:25,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387450227]
[2022-02-09 02:19:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:25,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:25,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:25,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:25,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:25,782 INFO L87 Difference]: Start difference. First operand 1370 states and 5413 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:25,897 INFO L93 Difference]: Finished difference Result 2788 states and 10268 transitions.
[2022-02-09 02:19:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:25,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:25,904 INFO L225 Difference]: With dead ends: 2788
[2022-02-09 02:19:25,904 INFO L226 Difference]: Without dead ends: 2629
[2022-02-09 02:19:25,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:25,905 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:25,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states.
[2022-02-09 02:19:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1394.
[2022-02-09 02:19:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.946159368269921) internal successors, (5497), 1393 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions.
[2022-02-09 02:19:25,932 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25
[2022-02-09 02:19:25,932 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:25,932 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions.
[2022-02-09 02:19:25,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions.
[2022-02-09 02:19:25,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:25,934 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:25,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:25,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377
[2022-02-09 02:19:25,935 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:25,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:25,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1470249687, now seen corresponding path program 374 times
[2022-02-09 02:19:25,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:25,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723257125]
[2022-02-09 02:19:25,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:25,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:26,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:26,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723257125]
[2022-02-09 02:19:26,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723257125] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:26,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:26,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:26,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515928530]
[2022-02-09 02:19:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:26,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:26,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:26,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:26,059 INFO L87 Difference]: Start difference. First operand 1394 states and 5497 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:26,171 INFO L93 Difference]: Finished difference Result 2816 states and 10356 transitions.
[2022-02-09 02:19:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:26,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:26,179 INFO L225 Difference]: With dead ends: 2816
[2022-02-09 02:19:26,179 INFO L226 Difference]: Without dead ends: 2613
[2022-02-09 02:19:26,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:26,179 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:26,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states.
[2022-02-09 02:19:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1378.
[2022-02-09 02:19:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.9513435003631083) internal successors, (5441), 1377 states have internal predecessors, (5441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5441 transitions.
[2022-02-09 02:19:26,208 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5441 transitions. Word has length 25
[2022-02-09 02:19:26,208 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:26,208 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5441 transitions.
[2022-02-09 02:19:26,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5441 transitions.
[2022-02-09 02:19:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:26,210 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:26,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:26,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378
[2022-02-09 02:19:26,210 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash -384845259, now seen corresponding path program 375 times
[2022-02-09 02:19:26,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:26,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373610166]
[2022-02-09 02:19:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:26,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:26,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:26,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373610166]
[2022-02-09 02:19:26,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373610166] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:26,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:26,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:26,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390576667]
[2022-02-09 02:19:26,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:26,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:26,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:26,336 INFO L87 Difference]: Start difference. First operand 1378 states and 5441 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:26,431 INFO L93 Difference]: Finished difference Result 2784 states and 10248 transitions.
[2022-02-09 02:19:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:26,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:26,437 INFO L225 Difference]: With dead ends: 2784
[2022-02-09 02:19:26,437 INFO L226 Difference]: Without dead ends: 2625
[2022-02-09 02:19:26,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:26,438 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 120 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:26,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states.
[2022-02-09 02:19:26,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1394.
[2022-02-09 02:19:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.940416367552046) internal successors, (5489), 1393 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions.
[2022-02-09 02:19:26,476 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25
[2022-02-09 02:19:26,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:26,476 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions.
[2022-02-09 02:19:26,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions.
[2022-02-09 02:19:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:26,479 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:26,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:26,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379
[2022-02-09 02:19:26,479 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash -414704937, now seen corresponding path program 376 times
[2022-02-09 02:19:26,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:26,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44759470]
[2022-02-09 02:19:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:26,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:26,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:26,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44759470]
[2022-02-09 02:19:26,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44759470] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:26,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:26,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:26,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290235536]
[2022-02-09 02:19:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:26,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:26,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:26,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:26,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:26,595 INFO L87 Difference]: Start difference. First operand 1394 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:26,713 INFO L93 Difference]: Finished difference Result 2808 states and 10324 transitions.
[2022-02-09 02:19:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:26,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:26,719 INFO L225 Difference]: With dead ends: 2808
[2022-02-09 02:19:26,719 INFO L226 Difference]: Without dead ends: 2609
[2022-02-09 02:19:26,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:26,719 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:26,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 161 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:26,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states.
[2022-02-09 02:19:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1378.
[2022-02-09 02:19:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.945533769063181) internal successors, (5433), 1377 states have internal predecessors, (5433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5433 transitions.
[2022-02-09 02:19:26,744 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5433 transitions. Word has length 25
[2022-02-09 02:19:26,744 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:26,744 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5433 transitions.
[2022-02-09 02:19:26,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5433 transitions.
[2022-02-09 02:19:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:26,746 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:26,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:26,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380
[2022-02-09 02:19:26,747 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:26,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:26,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1519817431, now seen corresponding path program 377 times
[2022-02-09 02:19:26,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:26,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536643942]
[2022-02-09 02:19:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:26,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:26,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:26,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536643942]
[2022-02-09 02:19:26,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536643942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:26,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:26,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:26,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955893063]
[2022-02-09 02:19:26,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:26,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:26,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:26,864 INFO L87 Difference]: Start difference. First operand 1378 states and 5433 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:26,985 INFO L93 Difference]: Finished difference Result 2852 states and 10500 transitions.
[2022-02-09 02:19:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:26,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:26,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:26,991 INFO L225 Difference]: With dead ends: 2852
[2022-02-09 02:19:26,991 INFO L226 Difference]: Without dead ends: 2665
[2022-02-09 02:19:26,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:26,991 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:26,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states.
[2022-02-09 02:19:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1406.
[2022-02-09 02:19:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 3.929537366548043) internal successors, (5521), 1405 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5521 transitions.
[2022-02-09 02:19:27,017 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5521 transitions. Word has length 25
[2022-02-09 02:19:27,017 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:27,017 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5521 transitions.
[2022-02-09 02:19:27,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5521 transitions.
[2022-02-09 02:19:27,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:27,019 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:27,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:27,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381
[2022-02-09 02:19:27,020 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:27,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash -523519563, now seen corresponding path program 378 times
[2022-02-09 02:19:27,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:27,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198125135]
[2022-02-09 02:19:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:27,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:27,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:27,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198125135]
[2022-02-09 02:19:27,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198125135] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:27,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:27,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:27,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572613325]
[2022-02-09 02:19:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:27,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:27,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:27,136 INFO L87 Difference]: Start difference. First operand 1406 states and 5521 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:27,260 INFO L93 Difference]: Finished difference Result 2848 states and 10460 transitions.
[2022-02-09 02:19:27,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:27,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:27,266 INFO L225 Difference]: With dead ends: 2848
[2022-02-09 02:19:27,266 INFO L226 Difference]: Without dead ends: 2629
[2022-02-09 02:19:27,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:27,267 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 93 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:27,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 176 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:27,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states.
[2022-02-09 02:19:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1370.
[2022-02-09 02:19:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9510591672753836) internal successors, (5409), 1369 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5409 transitions.
[2022-02-09 02:19:27,293 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5409 transitions. Word has length 25
[2022-02-09 02:19:27,293 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:27,293 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5409 transitions.
[2022-02-09 02:19:27,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5409 transitions.
[2022-02-09 02:19:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:27,296 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:27,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:27,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382
[2022-02-09 02:19:27,296 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 426846935, now seen corresponding path program 379 times
[2022-02-09 02:19:27,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:27,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470294298]
[2022-02-09 02:19:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:27,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:27,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:27,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470294298]
[2022-02-09 02:19:27,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470294298] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:27,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:27,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:27,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173759832]
[2022-02-09 02:19:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:27,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:27,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:27,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:27,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:27,423 INFO L87 Difference]: Start difference. First operand 1370 states and 5409 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:27,545 INFO L93 Difference]: Finished difference Result 2987 states and 11039 transitions.
[2022-02-09 02:19:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:27,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:27,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:27,554 INFO L225 Difference]: With dead ends: 2987
[2022-02-09 02:19:27,554 INFO L226 Difference]: Without dead ends: 2800
[2022-02-09 02:19:27,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:27,555 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:27,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 161 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states.
[2022-02-09 02:19:27,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 1420.
[2022-02-09 02:19:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9450317124735728) internal successors, (5598), 1419 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5598 transitions.
[2022-02-09 02:19:27,586 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5598 transitions. Word has length 25
[2022-02-09 02:19:27,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:27,586 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5598 transitions.
[2022-02-09 02:19:27,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5598 transitions.
[2022-02-09 02:19:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:27,588 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:27,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:27,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383
[2022-02-09 02:19:27,589 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:27,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1616490059, now seen corresponding path program 380 times
[2022-02-09 02:19:27,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:27,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029154900]
[2022-02-09 02:19:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:27,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:27,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:27,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029154900]
[2022-02-09 02:19:27,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029154900] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:27,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:27,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:27,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80687586]
[2022-02-09 02:19:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:27,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:27,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:27,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:27,707 INFO L87 Difference]: Start difference. First operand 1420 states and 5598 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:27,815 INFO L93 Difference]: Finished difference Result 2983 states and 10999 transitions.
[2022-02-09 02:19:27,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:27,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:27,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:27,822 INFO L225 Difference]: With dead ends: 2983
[2022-02-09 02:19:27,822 INFO L226 Difference]: Without dead ends: 2772
[2022-02-09 02:19:27,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:27,822 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:27,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 142 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states.
[2022-02-09 02:19:27,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1392.
[2022-02-09 02:19:27,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9511143062544933) internal successors, (5496), 1391 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5496 transitions.
[2022-02-09 02:19:27,854 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5496 transitions. Word has length 25
[2022-02-09 02:19:27,854 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:27,854 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5496 transitions.
[2022-02-09 02:19:27,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:27,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5496 transitions.
[2022-02-09 02:19:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:27,856 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:27,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:27,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384
[2022-02-09 02:19:27,856 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1631496117, now seen corresponding path program 381 times
[2022-02-09 02:19:27,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:27,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032612621]
[2022-02-09 02:19:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:27,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:27,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:27,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032612621]
[2022-02-09 02:19:27,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032612621] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:27,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:27,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:27,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683582650]
[2022-02-09 02:19:27,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:27,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:27,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:27,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:27,986 INFO L87 Difference]: Start difference. First operand 1392 states and 5496 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:28,097 INFO L93 Difference]: Finished difference Result 3044 states and 11227 transitions.
[2022-02-09 02:19:28,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:28,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:28,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:28,104 INFO L225 Difference]: With dead ends: 3044
[2022-02-09 02:19:28,104 INFO L226 Difference]: Without dead ends: 2857
[2022-02-09 02:19:28,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:28,104 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:28,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 144 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states.
[2022-02-09 02:19:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1438.
[2022-02-09 02:19:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 3.9338900487125956) internal successors, (5653), 1437 states have internal predecessors, (5653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 5653 transitions.
[2022-02-09 02:19:28,132 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 5653 transitions. Word has length 25
[2022-02-09 02:19:28,132 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:28,132 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 5653 transitions.
[2022-02-09 02:19:28,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 5653 transitions.
[2022-02-09 02:19:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:28,134 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:28,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:28,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385
[2022-02-09 02:19:28,134 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1712385973, now seen corresponding path program 382 times
[2022-02-09 02:19:28,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:28,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175809227]
[2022-02-09 02:19:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:28,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:28,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:28,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175809227]
[2022-02-09 02:19:28,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175809227] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:28,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:28,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:28,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054088060]
[2022-02-09 02:19:28,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:28,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:28,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:28,257 INFO L87 Difference]: Start difference. First operand 1438 states and 5653 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:28,361 INFO L93 Difference]: Finished difference Result 3079 states and 11316 transitions.
[2022-02-09 02:19:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:28,367 INFO L225 Difference]: With dead ends: 3079
[2022-02-09 02:19:28,367 INFO L226 Difference]: Without dead ends: 2811
[2022-02-09 02:19:28,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:28,368 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:28,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:28,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states.
[2022-02-09 02:19:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1392.
[2022-02-09 02:19:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9352983465133) internal successors, (5474), 1391 states have internal predecessors, (5474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5474 transitions.
[2022-02-09 02:19:28,394 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5474 transitions. Word has length 25
[2022-02-09 02:19:28,394 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:28,394 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5474 transitions.
[2022-02-09 02:19:28,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5474 transitions.
[2022-02-09 02:19:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:28,396 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:28,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:28,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386
[2022-02-09 02:19:28,396 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1681123565, now seen corresponding path program 383 times
[2022-02-09 02:19:28,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:28,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068990227]
[2022-02-09 02:19:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:28,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:28,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:28,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068990227]
[2022-02-09 02:19:28,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068990227] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:28,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:28,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:28,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969644575]
[2022-02-09 02:19:28,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:28,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:28,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:28,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:28,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:28,519 INFO L87 Difference]: Start difference. First operand 1392 states and 5474 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:28,636 INFO L93 Difference]: Finished difference Result 3034 states and 11174 transitions.
[2022-02-09 02:19:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:28,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:28,643 INFO L225 Difference]: With dead ends: 3034
[2022-02-09 02:19:28,643 INFO L226 Difference]: Without dead ends: 2851
[2022-02-09 02:19:28,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:28,643 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:28,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 156 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states.
[2022-02-09 02:19:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 1436.
[2022-02-09 02:19:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9205574912891987) internal successors, (5626), 1435 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5626 transitions.
[2022-02-09 02:19:28,687 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5626 transitions. Word has length 25
[2022-02-09 02:19:28,687 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:28,687 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5626 transitions.
[2022-02-09 02:19:28,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5626 transitions.
[2022-02-09 02:19:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:28,689 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:28,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:28,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387
[2022-02-09 02:19:28,689 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1544324725, now seen corresponding path program 384 times
[2022-02-09 02:19:28,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:28,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396316736]
[2022-02-09 02:19:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:28,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:28,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:28,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:28,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396316736]
[2022-02-09 02:19:28,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396316736] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:28,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:28,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:28,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246117253]
[2022-02-09 02:19:28,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:28,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:28,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:28,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:28,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:28,809 INFO L87 Difference]: Start difference. First operand 1436 states and 5626 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:28,913 INFO L93 Difference]: Finished difference Result 3073 states and 11277 transitions.
[2022-02-09 02:19:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:28,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:28,919 INFO L225 Difference]: With dead ends: 3073
[2022-02-09 02:19:28,919 INFO L226 Difference]: Without dead ends: 2777
[2022-02-09 02:19:28,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:28,920 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 98 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:28,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 154 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states.
[2022-02-09 02:19:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1362.
[2022-02-09 02:19:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9566495224099927) internal successors, (5385), 1361 states have internal predecessors, (5385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5385 transitions.
[2022-02-09 02:19:28,945 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5385 transitions. Word has length 25
[2022-02-09 02:19:28,945 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:28,945 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5385 transitions.
[2022-02-09 02:19:28,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5385 transitions.
[2022-02-09 02:19:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:28,947 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:28,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:28,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388
[2022-02-09 02:19:28,948 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:28,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1460770549, now seen corresponding path program 385 times
[2022-02-09 02:19:28,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:28,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006216300]
[2022-02-09 02:19:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:28,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:29,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:29,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006216300]
[2022-02-09 02:19:29,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006216300] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:29,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:29,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:29,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995937308]
[2022-02-09 02:19:29,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:29,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:29,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:29,064 INFO L87 Difference]: Start difference. First operand 1362 states and 5385 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:29,167 INFO L93 Difference]: Finished difference Result 2878 states and 10584 transitions.
[2022-02-09 02:19:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:29,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:29,173 INFO L225 Difference]: With dead ends: 2878
[2022-02-09 02:19:29,173 INFO L226 Difference]: Without dead ends: 2719
[2022-02-09 02:19:29,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:29,173 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:29,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:29,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states.
[2022-02-09 02:19:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1394.
[2022-02-09 02:19:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.946159368269921) internal successors, (5497), 1393 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions.
[2022-02-09 02:19:29,200 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25
[2022-02-09 02:19:29,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:29,200 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions.
[2022-02-09 02:19:29,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions.
[2022-02-09 02:19:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:29,202 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:29,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:29,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389
[2022-02-09 02:19:29,202 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 452472565, now seen corresponding path program 386 times
[2022-02-09 02:19:29,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:29,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143574124]
[2022-02-09 02:19:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:29,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:29,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:29,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143574124]
[2022-02-09 02:19:29,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143574124] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:29,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:29,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:29,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426831500]
[2022-02-09 02:19:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:29,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:29,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:29,322 INFO L87 Difference]: Start difference. First operand 1394 states and 5497 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:29,421 INFO L93 Difference]: Finished difference Result 2941 states and 10791 transitions.
[2022-02-09 02:19:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:29,429 INFO L225 Difference]: With dead ends: 2941
[2022-02-09 02:19:29,429 INFO L226 Difference]: Without dead ends: 2687
[2022-02-09 02:19:29,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:29,429 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 129 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:29,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 140 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states.
[2022-02-09 02:19:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1362.
[2022-02-09 02:19:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9448934606906687) internal successors, (5369), 1361 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5369 transitions.
[2022-02-09 02:19:29,457 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5369 transitions. Word has length 25
[2022-02-09 02:19:29,457 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:29,457 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5369 transitions.
[2022-02-09 02:19:29,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5369 transitions.
[2022-02-09 02:19:29,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:29,459 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:29,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:29,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390
[2022-02-09 02:19:29,459 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1845163241, now seen corresponding path program 387 times
[2022-02-09 02:19:29,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:29,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094465877]
[2022-02-09 02:19:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:29,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:29,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:29,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094465877]
[2022-02-09 02:19:29,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094465877] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:29,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:29,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:29,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356928312]
[2022-02-09 02:19:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:29,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:29,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:29,581 INFO L87 Difference]: Start difference. First operand 1362 states and 5369 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:29,693 INFO L93 Difference]: Finished difference Result 2827 states and 10385 transitions.
[2022-02-09 02:19:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:29,700 INFO L225 Difference]: With dead ends: 2827
[2022-02-09 02:19:29,700 INFO L226 Difference]: Without dead ends: 2668
[2022-02-09 02:19:29,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:29,700 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:29,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 168 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states.
[2022-02-09 02:19:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1378.
[2022-02-09 02:19:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.933914306463326) internal successors, (5417), 1377 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5417 transitions.
[2022-02-09 02:19:29,726 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5417 transitions. Word has length 25
[2022-02-09 02:19:29,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:29,726 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5417 transitions.
[2022-02-09 02:19:29,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5417 transitions.
[2022-02-09 02:19:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:29,728 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:29,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:29,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391
[2022-02-09 02:19:29,728 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash -836865257, now seen corresponding path program 388 times
[2022-02-09 02:19:29,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:29,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107524528]
[2022-02-09 02:19:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:29,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:29,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:29,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107524528]
[2022-02-09 02:19:29,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107524528] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:29,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:29,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:29,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701398278]
[2022-02-09 02:19:29,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:29,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:29,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:29,850 INFO L87 Difference]: Start difference. First operand 1378 states and 5417 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:29,965 INFO L93 Difference]: Finished difference Result 2855 states and 10473 transitions.
[2022-02-09 02:19:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:29,971 INFO L225 Difference]: With dead ends: 2855
[2022-02-09 02:19:29,971 INFO L226 Difference]: Without dead ends: 2652
[2022-02-09 02:19:29,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:29,971 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:29,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states.
[2022-02-09 02:19:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 1362.
[2022-02-09 02:19:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9390154298310067) internal successors, (5361), 1361 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions.
[2022-02-09 02:19:29,997 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25
[2022-02-09 02:19:29,997 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:29,997 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions.
[2022-02-09 02:19:29,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions.
[2022-02-09 02:19:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:29,999 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:29,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:29,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392
[2022-02-09 02:19:29,999 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:29,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:29,999 INFO L85 PathProgramCache]: Analyzing trace with hash 851381015, now seen corresponding path program 389 times
[2022-02-09 02:19:29,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:29,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171485883]
[2022-02-09 02:19:29,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:29,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:30,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:30,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171485883]
[2022-02-09 02:19:30,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171485883] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:30,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:30,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:30,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655678732]
[2022-02-09 02:19:30,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:30,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:30,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:30,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:30,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:30,120 INFO L87 Difference]: Start difference. First operand 1362 states and 5361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:30,233 INFO L93 Difference]: Finished difference Result 2948 states and 10827 transitions.
[2022-02-09 02:19:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:30,240 INFO L225 Difference]: With dead ends: 2948
[2022-02-09 02:19:30,240 INFO L226 Difference]: Without dead ends: 2761
[2022-02-09 02:19:30,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:30,240 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:30,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:30,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states.
[2022-02-09 02:19:30,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1408.
[2022-02-09 02:19:30,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.92181947405828) internal successors, (5518), 1407 states have internal predecessors, (5518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5518 transitions.
[2022-02-09 02:19:30,267 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5518 transitions. Word has length 25
[2022-02-09 02:19:30,267 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:30,268 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5518 transitions.
[2022-02-09 02:19:30,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5518 transitions.
[2022-02-09 02:19:30,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:30,270 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:30,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:30,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393
[2022-02-09 02:19:30,270 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:30,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:30,270 INFO L85 PathProgramCache]: Analyzing trace with hash 498241525, now seen corresponding path program 390 times
[2022-02-09 02:19:30,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:30,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499044301]
[2022-02-09 02:19:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:30,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:30,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:30,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499044301]
[2022-02-09 02:19:30,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499044301] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:30,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:30,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:30,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893423171]
[2022-02-09 02:19:30,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:30,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:30,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:30,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:30,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:30,396 INFO L87 Difference]: Start difference. First operand 1408 states and 5518 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:30,510 INFO L93 Difference]: Finished difference Result 2983 states and 10916 transitions.
[2022-02-09 02:19:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:30,516 INFO L225 Difference]: With dead ends: 2983
[2022-02-09 02:19:30,516 INFO L226 Difference]: Without dead ends: 2699
[2022-02-09 02:19:30,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:30,517 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:30,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 166 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:30,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states.
[2022-02-09 02:19:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 1346.
[2022-02-09 02:19:30,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9442379182156135) internal successors, (5305), 1345 states have internal predecessors, (5305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5305 transitions.
[2022-02-09 02:19:30,540 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5305 transitions. Word has length 25
[2022-02-09 02:19:30,540 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:30,540 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5305 transitions.
[2022-02-09 02:19:30,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5305 transitions.
[2022-02-09 02:19:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:30,543 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:30,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:30,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394
[2022-02-09 02:19:30,543 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash -461570315, now seen corresponding path program 391 times
[2022-02-09 02:19:30,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:30,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571372676]
[2022-02-09 02:19:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:30,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:30,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:30,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571372676]
[2022-02-09 02:19:30,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571372676] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:30,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:30,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:30,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979670899]
[2022-02-09 02:19:30,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:30,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:30,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:30,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:30,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:30,666 INFO L87 Difference]: Start difference. First operand 1346 states and 5305 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:30,761 INFO L93 Difference]: Finished difference Result 2828 states and 10385 transitions.
[2022-02-09 02:19:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:30,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:30,767 INFO L225 Difference]: With dead ends: 2828
[2022-02-09 02:19:30,767 INFO L226 Difference]: Without dead ends: 2669
[2022-02-09 02:19:30,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:30,767 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:30,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states.
[2022-02-09 02:19:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1394.
[2022-02-09 02:19:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.940416367552046) internal successors, (5489), 1393 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions.
[2022-02-09 02:19:30,812 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25
[2022-02-09 02:19:30,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:30,812 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions.
[2022-02-09 02:19:30,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:30,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions.
[2022-02-09 02:19:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:30,815 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:30,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:30,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395
[2022-02-09 02:19:30,815 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1469868299, now seen corresponding path program 392 times
[2022-02-09 02:19:30,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:30,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624281264]
[2022-02-09 02:19:30,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:30,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:30,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:30,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624281264]
[2022-02-09 02:19:30,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624281264] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:30,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:30,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:30,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202992199]
[2022-02-09 02:19:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:30,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:30,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:30,931 INFO L87 Difference]: Start difference. First operand 1394 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:31,030 INFO L93 Difference]: Finished difference Result 2891 states and 10592 transitions.
[2022-02-09 02:19:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:31,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:31,041 INFO L225 Difference]: With dead ends: 2891
[2022-02-09 02:19:31,042 INFO L226 Difference]: Without dead ends: 2637
[2022-02-09 02:19:31,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:31,042 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:31,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states.
[2022-02-09 02:19:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1362.
[2022-02-09 02:19:31,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9390154298310067) internal successors, (5361), 1361 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions.
[2022-02-09 02:19:31,070 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25
[2022-02-09 02:19:31,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:31,070 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions.
[2022-02-09 02:19:31,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions.
[2022-02-09 02:19:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:31,072 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:31,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:31,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396
[2022-02-09 02:19:31,072 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:31,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash 578987701, now seen corresponding path program 393 times
[2022-02-09 02:19:31,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:31,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102678830]
[2022-02-09 02:19:31,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:31,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:31,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:31,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102678830]
[2022-02-09 02:19:31,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102678830] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:31,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:31,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:31,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145041569]
[2022-02-09 02:19:31,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:31,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:31,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:31,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:31,194 INFO L87 Difference]: Start difference. First operand 1362 states and 5361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:31,296 INFO L93 Difference]: Finished difference Result 2733 states and 10034 transitions.
[2022-02-09 02:19:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:31,303 INFO L225 Difference]: With dead ends: 2733
[2022-02-09 02:19:31,303 INFO L226 Difference]: Without dead ends: 2574
[2022-02-09 02:19:31,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:31,303 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:31,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states.
[2022-02-09 02:19:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1378.
[2022-02-09 02:19:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.9281045751633985) internal successors, (5409), 1377 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5409 transitions.
[2022-02-09 02:19:31,332 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5409 transitions. Word has length 25
[2022-02-09 02:19:31,332 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:31,332 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5409 transitions.
[2022-02-09 02:19:31,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5409 transitions.
[2022-02-09 02:19:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:31,335 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:31,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:31,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397
[2022-02-09 02:19:31,335 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:31,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1363284299, now seen corresponding path program 394 times
[2022-02-09 02:19:31,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:31,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420764881]
[2022-02-09 02:19:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:31,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:31,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:31,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420764881]
[2022-02-09 02:19:31,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420764881] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:31,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:31,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:31,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914169059]
[2022-02-09 02:19:31,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:31,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:31,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:31,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:31,454 INFO L87 Difference]: Start difference. First operand 1378 states and 5409 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:31,565 INFO L93 Difference]: Finished difference Result 2621 states and 9697 transitions.
[2022-02-09 02:19:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:31,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:31,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:31,571 INFO L225 Difference]: With dead ends: 2621
[2022-02-09 02:19:31,571 INFO L226 Difference]: Without dead ends: 2430
[2022-02-09 02:19:31,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:31,572 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:31,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 143 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states.
[2022-02-09 02:19:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1362.
[2022-02-09 02:19:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9331373989713447) internal successors, (5353), 1361 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5353 transitions.
[2022-02-09 02:19:31,594 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5353 transitions. Word has length 25
[2022-02-09 02:19:31,594 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:31,594 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5353 transitions.
[2022-02-09 02:19:31,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5353 transitions.
[2022-02-09 02:19:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:31,597 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:31,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:31,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398
[2022-02-09 02:19:31,597 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 324961973, now seen corresponding path program 395 times
[2022-02-09 02:19:31,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:31,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988287272]
[2022-02-09 02:19:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:31,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:31,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:31,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988287272]
[2022-02-09 02:19:31,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988287272] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:31,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:31,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:31,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88755292]
[2022-02-09 02:19:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:31,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:31,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:31,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:31,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:31,714 INFO L87 Difference]: Start difference. First operand 1362 states and 5353 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:31,824 INFO L93 Difference]: Finished difference Result 2868 states and 10525 transitions.
[2022-02-09 02:19:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:31,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:31,830 INFO L225 Difference]: With dead ends: 2868
[2022-02-09 02:19:31,830 INFO L226 Difference]: Without dead ends: 2693
[2022-02-09 02:19:31,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:31,830 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:31,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states.
[2022-02-09 02:19:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1402.
[2022-02-09 02:19:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9207708779443253) internal successors, (5493), 1401 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5493 transitions.
[2022-02-09 02:19:31,855 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5493 transitions. Word has length 25
[2022-02-09 02:19:31,855 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:31,855 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5493 transitions.
[2022-02-09 02:19:31,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5493 transitions.
[2022-02-09 02:19:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:31,858 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:31,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:31,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399
[2022-02-09 02:19:31,858 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:31,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:31,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1330562413, now seen corresponding path program 396 times
[2022-02-09 02:19:31,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:31,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064802202]
[2022-02-09 02:19:31,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:31,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:31,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:31,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064802202]
[2022-02-09 02:19:31,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064802202] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:31,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:31,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:31,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324820383]
[2022-02-09 02:19:31,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:31,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:31,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:31,977 INFO L87 Difference]: Start difference. First operand 1402 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:32,080 INFO L93 Difference]: Finished difference Result 2820 states and 10325 transitions.
[2022-02-09 02:19:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:32,086 INFO L225 Difference]: With dead ends: 2820
[2022-02-09 02:19:32,086 INFO L226 Difference]: Without dead ends: 2542
[2022-02-09 02:19:32,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:32,086 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:32,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 148 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:32,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states.
[2022-02-09 02:19:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1346.
[2022-02-09 02:19:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9382899628252788) internal successors, (5297), 1345 states have internal predecessors, (5297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5297 transitions.
[2022-02-09 02:19:32,111 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5297 transitions. Word has length 25
[2022-02-09 02:19:32,111 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:32,111 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5297 transitions.
[2022-02-09 02:19:32,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5297 transitions.
[2022-02-09 02:19:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:32,113 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:32,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:32,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400
[2022-02-09 02:19:32,113 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1623213481, now seen corresponding path program 397 times
[2022-02-09 02:19:32,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:32,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704039271]
[2022-02-09 02:19:32,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:32,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:32,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:32,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704039271]
[2022-02-09 02:19:32,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704039271] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:32,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:32,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:32,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740893959]
[2022-02-09 02:19:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:32,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:32,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:32,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:32,233 INFO L87 Difference]: Start difference. First operand 1346 states and 5297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:32,334 INFO L93 Difference]: Finished difference Result 2718 states and 9975 transitions.
[2022-02-09 02:19:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:32,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:32,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:32,341 INFO L225 Difference]: With dead ends: 2718
[2022-02-09 02:19:32,341 INFO L226 Difference]: Without dead ends: 2559
[2022-02-09 02:19:32,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:32,341 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:32,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 163 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states.
[2022-02-09 02:19:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1370.
[2022-02-09 02:19:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9306062819576333) internal successors, (5381), 1369 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions.
[2022-02-09 02:19:32,367 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25
[2022-02-09 02:19:32,367 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:32,367 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions.
[2022-02-09 02:19:32,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions.
[2022-02-09 02:19:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:32,369 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:32,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:32,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401
[2022-02-09 02:19:32,369 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:32,370 INFO L85 PathProgramCache]: Analyzing trace with hash -614915497, now seen corresponding path program 398 times
[2022-02-09 02:19:32,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:32,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912457774]
[2022-02-09 02:19:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:32,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:32,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:32,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912457774]
[2022-02-09 02:19:32,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912457774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:32,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:32,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:32,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212533221]
[2022-02-09 02:19:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:32,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:32,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:32,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:32,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:32,492 INFO L87 Difference]: Start difference. First operand 1370 states and 5381 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:32,609 INFO L93 Difference]: Finished difference Result 2746 states and 10063 transitions.
[2022-02-09 02:19:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:32,615 INFO L225 Difference]: With dead ends: 2746
[2022-02-09 02:19:32,615 INFO L226 Difference]: Without dead ends: 2543
[2022-02-09 02:19:32,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:32,615 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:32,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 155 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:32,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states.
[2022-02-09 02:19:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 1354.
[2022-02-09 02:19:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.9356984478935697) internal successors, (5325), 1353 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5325 transitions.
[2022-02-09 02:19:32,640 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5325 transitions. Word has length 25
[2022-02-09 02:19:32,640 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:32,640 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5325 transitions.
[2022-02-09 02:19:32,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5325 transitions.
[2022-02-09 02:19:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:32,642 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:32,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:32,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402
[2022-02-09 02:19:32,642 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 555674165, now seen corresponding path program 399 times
[2022-02-09 02:19:32,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:32,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235481425]
[2022-02-09 02:19:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:32,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:32,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:32,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235481425]
[2022-02-09 02:19:32,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235481425] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:32,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:32,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:32,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393918437]
[2022-02-09 02:19:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:32,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:32,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:32,764 INFO L87 Difference]: Start difference. First operand 1354 states and 5325 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:32,866 INFO L93 Difference]: Finished difference Result 2674 states and 9815 transitions.
[2022-02-09 02:19:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:32,872 INFO L225 Difference]: With dead ends: 2674
[2022-02-09 02:19:32,873 INFO L226 Difference]: Without dead ends: 2515
[2022-02-09 02:19:32,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:32,873 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:32,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states.
[2022-02-09 02:19:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 1370.
[2022-02-09 02:19:32,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9247626004382763) internal successors, (5373), 1369 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5373 transitions.
[2022-02-09 02:19:32,898 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5373 transitions. Word has length 25
[2022-02-09 02:19:32,898 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:32,898 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5373 transitions.
[2022-02-09 02:19:32,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5373 transitions.
[2022-02-09 02:19:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:32,901 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:32,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:32,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403
[2022-02-09 02:19:32,901 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash -89857449, now seen corresponding path program 400 times
[2022-02-09 02:19:32,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:32,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963206717]
[2022-02-09 02:19:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:32,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:33,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:33,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963206717]
[2022-02-09 02:19:33,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963206717] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:33,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:33,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:33,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210650177]
[2022-02-09 02:19:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:33,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:33,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:33,033 INFO L87 Difference]: Start difference. First operand 1370 states and 5373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:33,141 INFO L93 Difference]: Finished difference Result 2562 states and 9478 transitions.
[2022-02-09 02:19:33,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:33,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:33,146 INFO L225 Difference]: With dead ends: 2562
[2022-02-09 02:19:33,146 INFO L226 Difference]: Without dead ends: 2371
[2022-02-09 02:19:33,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:33,147 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:33,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states.
[2022-02-09 02:19:33,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1354.
[2022-02-09 02:19:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.9297856614929785) internal successors, (5317), 1353 states have internal predecessors, (5317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5317 transitions.
[2022-02-09 02:19:33,169 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5317 transitions. Word has length 25
[2022-02-09 02:19:33,169 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:33,169 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5317 transitions.
[2022-02-09 02:19:33,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5317 transitions.
[2022-02-09 02:19:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:33,171 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:33,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:33,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404
[2022-02-09 02:19:33,171 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:33,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1172466263, now seen corresponding path program 401 times
[2022-02-09 02:19:33,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:33,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666992829]
[2022-02-09 02:19:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:33,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:33,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:33,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666992829]
[2022-02-09 02:19:33,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666992829] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:33,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:33,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:33,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024960918]
[2022-02-09 02:19:33,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:33,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:33,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:33,286 INFO L87 Difference]: Start difference. First operand 1354 states and 5317 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:33,394 INFO L93 Difference]: Finished difference Result 2710 states and 9947 transitions.
[2022-02-09 02:19:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:33,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:33,400 INFO L225 Difference]: With dead ends: 2710
[2022-02-09 02:19:33,400 INFO L226 Difference]: Without dead ends: 2523
[2022-02-09 02:19:33,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:33,400 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:33,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 142 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states.
[2022-02-09 02:19:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 1378.
[2022-02-09 02:19:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.916485112563544) internal successors, (5393), 1377 states have internal predecessors, (5393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5393 transitions.
[2022-02-09 02:19:33,424 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5393 transitions. Word has length 25
[2022-02-09 02:19:33,424 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:33,424 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5393 transitions.
[2022-02-09 02:19:33,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5393 transitions.
[2022-02-09 02:19:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:33,426 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:33,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:33,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405
[2022-02-09 02:19:33,426 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:33,426 INFO L85 PathProgramCache]: Analyzing trace with hash -219678283, now seen corresponding path program 402 times
[2022-02-09 02:19:33,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:33,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39953860]
[2022-02-09 02:19:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:33,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:33,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:33,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39953860]
[2022-02-09 02:19:33,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39953860] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:33,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:33,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:33,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081334215]
[2022-02-09 02:19:33,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:33,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:33,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:33,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:33,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:33,541 INFO L87 Difference]: Start difference. First operand 1378 states and 5393 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:33,653 INFO L93 Difference]: Finished difference Result 2570 states and 9498 transitions.
[2022-02-09 02:19:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:33,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:33,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:33,659 INFO L225 Difference]: With dead ends: 2570
[2022-02-09 02:19:33,659 INFO L226 Difference]: Without dead ends: 2363
[2022-02-09 02:19:33,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:33,660 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:33,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 149 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states.
[2022-02-09 02:19:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 1346.
[2022-02-09 02:19:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9353159851301114) internal successors, (5293), 1345 states have internal predecessors, (5293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5293 transitions.
[2022-02-09 02:19:33,686 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5293 transitions. Word has length 25
[2022-02-09 02:19:33,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:33,686 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5293 transitions.
[2022-02-09 02:19:33,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5293 transitions.
[2022-02-09 02:19:33,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:33,688 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:33,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:33,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406
[2022-02-09 02:19:33,688 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash 79495767, now seen corresponding path program 403 times
[2022-02-09 02:19:33,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:33,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808262953]
[2022-02-09 02:19:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:33,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:33,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:33,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808262953]
[2022-02-09 02:19:33,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808262953] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:33,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:33,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:33,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945720806]
[2022-02-09 02:19:33,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:33,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:33,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:33,804 INFO L87 Difference]: Start difference. First operand 1346 states and 5293 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:33,907 INFO L93 Difference]: Finished difference Result 2915 states and 10741 transitions.
[2022-02-09 02:19:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:33,914 INFO L225 Difference]: With dead ends: 2915
[2022-02-09 02:19:33,914 INFO L226 Difference]: Without dead ends: 2728
[2022-02-09 02:19:33,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:33,914 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:33,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 131 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states.
[2022-02-09 02:19:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1390.
[2022-02-09 02:19:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.931605471562275) internal successors, (5461), 1389 states have internal predecessors, (5461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5461 transitions.
[2022-02-09 02:19:33,941 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5461 transitions. Word has length 25
[2022-02-09 02:19:33,941 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:33,941 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5461 transitions.
[2022-02-09 02:19:33,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5461 transitions.
[2022-02-09 02:19:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:33,943 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:33,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:33,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407
[2022-02-09 02:19:33,943 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1312648779, now seen corresponding path program 404 times
[2022-02-09 02:19:33,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:33,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335370981]
[2022-02-09 02:19:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:33,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:34,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:34,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335370981]
[2022-02-09 02:19:34,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335370981] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:34,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:34,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:34,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291191413]
[2022-02-09 02:19:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:34,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:34,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:34,060 INFO L87 Difference]: Start difference. First operand 1390 states and 5461 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:34,183 INFO L93 Difference]: Finished difference Result 2903 states and 10677 transitions.
[2022-02-09 02:19:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:34,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:34,190 INFO L225 Difference]: With dead ends: 2903
[2022-02-09 02:19:34,190 INFO L226 Difference]: Without dead ends: 2704
[2022-02-09 02:19:34,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:34,190 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:34,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states.
[2022-02-09 02:19:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 1366.
[2022-02-09 02:19:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1365 states have (on average 3.936263736263736) internal successors, (5373), 1365 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5373 transitions.
[2022-02-09 02:19:34,218 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5373 transitions. Word has length 25
[2022-02-09 02:19:34,218 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:34,218 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5373 transitions.
[2022-02-09 02:19:34,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5373 transitions.
[2022-02-09 02:19:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:34,221 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:34,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:34,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408
[2022-02-09 02:19:34,221 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1741539659, now seen corresponding path program 405 times
[2022-02-09 02:19:34,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:34,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667678184]
[2022-02-09 02:19:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:34,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:34,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:34,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667678184]
[2022-02-09 02:19:34,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667678184] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:34,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:34,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:34,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619198094]
[2022-02-09 02:19:34,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:34,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:34,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:34,340 INFO L87 Difference]: Start difference. First operand 1366 states and 5373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:34,449 INFO L93 Difference]: Finished difference Result 2938 states and 10788 transitions.
[2022-02-09 02:19:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:34,455 INFO L225 Difference]: With dead ends: 2938
[2022-02-09 02:19:34,455 INFO L226 Difference]: Without dead ends: 2751
[2022-02-09 02:19:34,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:34,456 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:34,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 142 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states.
[2022-02-09 02:19:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1412.
[2022-02-09 02:19:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.919206236711552) internal successors, (5530), 1411 states have internal predecessors, (5530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5530 transitions.
[2022-02-09 02:19:34,482 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5530 transitions. Word has length 25
[2022-02-09 02:19:34,482 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:34,482 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5530 transitions.
[2022-02-09 02:19:34,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5530 transitions.
[2022-02-09 02:19:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:34,484 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:34,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:34,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409
[2022-02-09 02:19:34,484 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash -372779211, now seen corresponding path program 406 times
[2022-02-09 02:19:34,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:34,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36865221]
[2022-02-09 02:19:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:34,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:34,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:34,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36865221]
[2022-02-09 02:19:34,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36865221] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:34,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:34,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:34,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204730385]
[2022-02-09 02:19:34,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:34,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:34,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:34,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:34,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:34,604 INFO L87 Difference]: Start difference. First operand 1412 states and 5530 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:34,703 INFO L93 Difference]: Finished difference Result 2973 states and 10877 transitions.
[2022-02-09 02:19:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:34,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:34,709 INFO L225 Difference]: With dead ends: 2973
[2022-02-09 02:19:34,709 INFO L226 Difference]: Without dead ends: 2705
[2022-02-09 02:19:34,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:34,710 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:34,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 144 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states.
[2022-02-09 02:19:34,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1366.
[2022-02-09 02:19:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1365 states have (on average 3.9216117216117214) internal successors, (5353), 1365 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5353 transitions.
[2022-02-09 02:19:34,734 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5353 transitions. Word has length 25
[2022-02-09 02:19:34,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:34,734 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5353 transitions.
[2022-02-09 02:19:34,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5353 transitions.
[2022-02-09 02:19:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:34,736 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:34,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:34,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410
[2022-02-09 02:19:34,736 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1377282285, now seen corresponding path program 407 times
[2022-02-09 02:19:34,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:34,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943005810]
[2022-02-09 02:19:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:34,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:34,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:34,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943005810]
[2022-02-09 02:19:34,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943005810] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:34,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:34,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:34,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003730024]
[2022-02-09 02:19:34,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:34,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:34,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:34,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:34,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:34,855 INFO L87 Difference]: Start difference. First operand 1366 states and 5353 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:34,962 INFO L93 Difference]: Finished difference Result 2908 states and 10665 transitions.
[2022-02-09 02:19:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:34,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:34,968 INFO L225 Difference]: With dead ends: 2908
[2022-02-09 02:19:34,968 INFO L226 Difference]: Without dead ends: 2733
[2022-02-09 02:19:34,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:34,969 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:34,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states.
[2022-02-09 02:19:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1406.
[2022-02-09 02:19:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 3.9096085409252668) internal successors, (5493), 1405 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5493 transitions.
[2022-02-09 02:19:34,996 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5493 transitions. Word has length 25
[2022-02-09 02:19:34,996 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:34,996 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5493 transitions.
[2022-02-09 02:19:34,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:34,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5493 transitions.
[2022-02-09 02:19:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:34,999 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:34,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:34,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411
[2022-02-09 02:19:34,999 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1158930699, now seen corresponding path program 408 times
[2022-02-09 02:19:34,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:34,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299776075]
[2022-02-09 02:19:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:34,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:35,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:35,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299776075]
[2022-02-09 02:19:35,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299776075] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:35,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:35,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:35,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647277352]
[2022-02-09 02:19:35,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:35,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:35,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:35,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:35,119 INFO L87 Difference]: Start difference. First operand 1406 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:35,223 INFO L93 Difference]: Finished difference Result 2860 states and 10465 transitions.
[2022-02-09 02:19:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:35,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:35,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:35,229 INFO L225 Difference]: With dead ends: 2860
[2022-02-09 02:19:35,229 INFO L226 Difference]: Without dead ends: 2570
[2022-02-09 02:19:35,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:35,229 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:35,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 141 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states.
[2022-02-09 02:19:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 1338.
[2022-02-09 02:19:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9409124906507107) internal successors, (5269), 1337 states have internal predecessors, (5269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5269 transitions.
[2022-02-09 02:19:35,268 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5269 transitions. Word has length 25
[2022-02-09 02:19:35,268 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:35,268 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5269 transitions.
[2022-02-09 02:19:35,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5269 transitions.
[2022-02-09 02:19:35,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:35,270 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:35,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:35,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412
[2022-02-09 02:19:35,270 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:35,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1225190825, now seen corresponding path program 409 times
[2022-02-09 02:19:35,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:35,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447273402]
[2022-02-09 02:19:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:35,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:35,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:35,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447273402]
[2022-02-09 02:19:35,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447273402] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:35,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:35,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:35,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621156350]
[2022-02-09 02:19:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:35,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:35,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:35,389 INFO L87 Difference]: Start difference. First operand 1338 states and 5269 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:35,484 INFO L93 Difference]: Finished difference Result 2810 states and 10302 transitions.
[2022-02-09 02:19:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:35,489 INFO L225 Difference]: With dead ends: 2810
[2022-02-09 02:19:35,489 INFO L226 Difference]: Without dead ends: 2651
[2022-02-09 02:19:35,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:35,490 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:35,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 133 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states.
[2022-02-09 02:19:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 1370.
[2022-02-09 02:19:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9306062819576333) internal successors, (5381), 1369 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions.
[2022-02-09 02:19:35,513 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25
[2022-02-09 02:19:35,513 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:35,513 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions.
[2022-02-09 02:19:35,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions.
[2022-02-09 02:19:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:35,515 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:35,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:35,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413
[2022-02-09 02:19:35,516 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:35,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2061478487, now seen corresponding path program 410 times
[2022-02-09 02:19:35,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:35,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963147944]
[2022-02-09 02:19:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:35,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:35,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:35,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:35,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963147944]
[2022-02-09 02:19:35,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963147944] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:35,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:35,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:35,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640970791]
[2022-02-09 02:19:35,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:35,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:35,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:35,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:35,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:35,636 INFO L87 Difference]: Start difference. First operand 1370 states and 5381 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:35,734 INFO L93 Difference]: Finished difference Result 2873 states and 10509 transitions.
[2022-02-09 02:19:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:35,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:35,740 INFO L225 Difference]: With dead ends: 2873
[2022-02-09 02:19:35,740 INFO L226 Difference]: Without dead ends: 2619
[2022-02-09 02:19:35,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:35,740 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:35,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 143 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states.
[2022-02-09 02:19:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 1338.
[2022-02-09 02:19:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9289454001495887) internal successors, (5253), 1337 states have internal predecessors, (5253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5253 transitions.
[2022-02-09 02:19:35,764 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5253 transitions. Word has length 25
[2022-02-09 02:19:35,764 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:35,764 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5253 transitions.
[2022-02-09 02:19:35,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5253 transitions.
[2022-02-09 02:19:35,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:35,766 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:35,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:35,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414
[2022-02-09 02:19:35,766 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:35,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:35,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1219438057, now seen corresponding path program 411 times
[2022-02-09 02:19:35,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:35,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117442467]
[2022-02-09 02:19:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:35,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:35,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:35,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117442467]
[2022-02-09 02:19:35,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117442467] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:35,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:35,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:35,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16472096]
[2022-02-09 02:19:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:35,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:35,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:35,890 INFO L87 Difference]: Start difference. First operand 1338 states and 5253 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:36,012 INFO L93 Difference]: Finished difference Result 2755 states and 10091 transitions.
[2022-02-09 02:19:36,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:36,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:36,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:36,018 INFO L225 Difference]: With dead ends: 2755
[2022-02-09 02:19:36,018 INFO L226 Difference]: Without dead ends: 2596
[2022-02-09 02:19:36,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:36,018 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:36,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states.
[2022-02-09 02:19:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 1354.
[2022-02-09 02:19:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.917960088691796) internal successors, (5301), 1353 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5301 transitions.
[2022-02-09 02:19:36,044 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5301 transitions. Word has length 25
[2022-02-09 02:19:36,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:36,045 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5301 transitions.
[2022-02-09 02:19:36,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5301 transitions.
[2022-02-09 02:19:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:36,047 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:36,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:36,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415
[2022-02-09 02:19:36,047 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:36,047 INFO L85 PathProgramCache]: Analyzing trace with hash 461058583, now seen corresponding path program 412 times
[2022-02-09 02:19:36,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:36,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396997791]
[2022-02-09 02:19:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:36,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:36,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:36,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:36,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396997791]
[2022-02-09 02:19:36,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396997791] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:36,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:36,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:36,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767215744]
[2022-02-09 02:19:36,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:36,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:36,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:36,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:36,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:36,169 INFO L87 Difference]: Start difference. First operand 1354 states and 5301 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:36,282 INFO L93 Difference]: Finished difference Result 2779 states and 10167 transitions.
[2022-02-09 02:19:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:36,288 INFO L225 Difference]: With dead ends: 2779
[2022-02-09 02:19:36,288 INFO L226 Difference]: Without dead ends: 2580
[2022-02-09 02:19:36,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:36,288 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 101 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:36,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 140 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:36,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states.
[2022-02-09 02:19:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 1338.
[2022-02-09 02:19:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9229618548990275) internal successors, (5245), 1337 states have internal predecessors, (5245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5245 transitions.
[2022-02-09 02:19:36,312 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5245 transitions. Word has length 25
[2022-02-09 02:19:36,312 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:36,312 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5245 transitions.
[2022-02-09 02:19:36,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5245 transitions.
[2022-02-09 02:19:36,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:36,314 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:36,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:36,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416
[2022-02-09 02:19:36,315 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2145662441, now seen corresponding path program 413 times
[2022-02-09 02:19:36,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:36,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428738853]
[2022-02-09 02:19:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:36,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:36,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:36,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428738853]
[2022-02-09 02:19:36,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428738853] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:36,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:36,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:36,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855674696]
[2022-02-09 02:19:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:36,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:36,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:36,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:36,437 INFO L87 Difference]: Start difference. First operand 1338 states and 5245 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:36,556 INFO L93 Difference]: Finished difference Result 2870 states and 10514 transitions.
[2022-02-09 02:19:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:36,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:36,562 INFO L225 Difference]: With dead ends: 2870
[2022-02-09 02:19:36,563 INFO L226 Difference]: Without dead ends: 2687
[2022-02-09 02:19:36,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:36,563 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:36,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states.
[2022-02-09 02:19:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1382.
[2022-02-09 02:19:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1381 states have (on average 3.9080376538740045) internal successors, (5397), 1381 states have internal predecessors, (5397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 5397 transitions.
[2022-02-09 02:19:36,588 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 5397 transitions. Word has length 25
[2022-02-09 02:19:36,588 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:36,588 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 5397 transitions.
[2022-02-09 02:19:36,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 5397 transitions.
[2022-02-09 02:19:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:36,590 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:36,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:36,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417
[2022-02-09 02:19:36,590 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1144972917, now seen corresponding path program 414 times
[2022-02-09 02:19:36,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:36,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587229525]
[2022-02-09 02:19:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:36,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:36,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:36,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587229525]
[2022-02-09 02:19:36,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587229525] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:36,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:36,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:36,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161707058]
[2022-02-09 02:19:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:36,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:36,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:36,714 INFO L87 Difference]: Start difference. First operand 1382 states and 5397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:36,823 INFO L93 Difference]: Finished difference Result 2909 states and 10617 transitions.
[2022-02-09 02:19:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:36,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:36,830 INFO L225 Difference]: With dead ends: 2909
[2022-02-09 02:19:36,830 INFO L226 Difference]: Without dead ends: 2627
[2022-02-09 02:19:36,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:36,830 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:36,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 153 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:36,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states.
[2022-02-09 02:19:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 1322.
[2022-02-09 02:19:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 3.9280847842543527) internal successors, (5189), 1321 states have internal predecessors, (5189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5189 transitions.
[2022-02-09 02:19:36,854 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5189 transitions. Word has length 25
[2022-02-09 02:19:36,854 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:36,854 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5189 transitions.
[2022-02-09 02:19:36,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5189 transitions.
[2022-02-09 02:19:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:36,856 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:36,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:36,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418
[2022-02-09 02:19:36,856 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 232856245, now seen corresponding path program 415 times
[2022-02-09 02:19:36,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:36,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648470544]
[2022-02-09 02:19:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:36,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:36,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:36,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648470544]
[2022-02-09 02:19:36,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648470544] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:36,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:36,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:36,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849601327]
[2022-02-09 02:19:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:36,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:36,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:36,981 INFO L87 Difference]: Start difference. First operand 1322 states and 5189 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:37,075 INFO L93 Difference]: Finished difference Result 2750 states and 10050 transitions.
[2022-02-09 02:19:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:37,082 INFO L225 Difference]: With dead ends: 2750
[2022-02-09 02:19:37,082 INFO L226 Difference]: Without dead ends: 2591
[2022-02-09 02:19:37,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:37,082 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 138 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:37,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 126 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states.
[2022-02-09 02:19:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1322.
[2022-02-09 02:19:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 3.915972747918244) internal successors, (5173), 1321 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5173 transitions.
[2022-02-09 02:19:37,109 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5173 transitions. Word has length 25
[2022-02-09 02:19:37,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:37,109 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5173 transitions.
[2022-02-09 02:19:37,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5173 transitions.
[2022-02-09 02:19:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:37,111 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:37,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:37,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419
[2022-02-09 02:19:37,112 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:37,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:37,112 INFO L85 PathProgramCache]: Analyzing trace with hash -775441739, now seen corresponding path program 416 times
[2022-02-09 02:19:37,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:37,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960035638]
[2022-02-09 02:19:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:37,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:37,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:37,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960035638]
[2022-02-09 02:19:37,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960035638] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:37,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:37,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:37,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582860037]
[2022-02-09 02:19:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:37,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:37,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:37,237 INFO L87 Difference]: Start difference. First operand 1322 states and 5173 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:37,341 INFO L93 Difference]: Finished difference Result 2813 states and 10257 transitions.
[2022-02-09 02:19:37,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:37,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:37,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:37,347 INFO L225 Difference]: With dead ends: 2813
[2022-02-09 02:19:37,348 INFO L226 Difference]: Without dead ends: 2559
[2022-02-09 02:19:37,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:37,348 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:37,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 150 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states.
[2022-02-09 02:19:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1290.
[2022-02-09 02:19:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 3.91388673390225) internal successors, (5045), 1289 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5045 transitions.
[2022-02-09 02:19:37,373 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5045 transitions. Word has length 25
[2022-02-09 02:19:37,373 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:37,373 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5045 transitions.
[2022-02-09 02:19:37,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5045 transitions.
[2022-02-09 02:19:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:37,384 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:37,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:37,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420
[2022-02-09 02:19:37,385 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1466193385, now seen corresponding path program 417 times
[2022-02-09 02:19:37,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:37,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78851294]
[2022-02-09 02:19:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:37,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:37,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:37,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78851294]
[2022-02-09 02:19:37,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78851294] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:37,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:37,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:37,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847509283]
[2022-02-09 02:19:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:37,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:37,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:37,507 INFO L87 Difference]: Start difference. First operand 1290 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:37,611 INFO L93 Difference]: Finished difference Result 2655 states and 9699 transitions.
[2022-02-09 02:19:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:37,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:37,617 INFO L225 Difference]: With dead ends: 2655
[2022-02-09 02:19:37,618 INFO L226 Difference]: Without dead ends: 2496
[2022-02-09 02:19:37,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:37,618 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:37,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 154 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states.
[2022-02-09 02:19:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1306.
[2022-02-09 02:19:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.9026819923371647) internal successors, (5093), 1305 states have internal predecessors, (5093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5093 transitions.
[2022-02-09 02:19:37,644 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5093 transitions. Word has length 25
[2022-02-09 02:19:37,644 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:37,644 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5093 transitions.
[2022-02-09 02:19:37,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5093 transitions.
[2022-02-09 02:19:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:37,646 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:37,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:37,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421
[2022-02-09 02:19:37,646 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:37,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:37,646 INFO L85 PathProgramCache]: Analyzing trace with hash 886501911, now seen corresponding path program 418 times
[2022-02-09 02:19:37,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:37,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606894809]
[2022-02-09 02:19:37,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:37,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:37,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:37,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606894809]
[2022-02-09 02:19:37,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606894809] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:37,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:37,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:37,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079337306]
[2022-02-09 02:19:37,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:37,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:37,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:37,775 INFO L87 Difference]: Start difference. First operand 1306 states and 5093 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:37,891 INFO L93 Difference]: Finished difference Result 2543 states and 9362 transitions.
[2022-02-09 02:19:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:37,897 INFO L225 Difference]: With dead ends: 2543
[2022-02-09 02:19:37,897 INFO L226 Difference]: Without dead ends: 2352
[2022-02-09 02:19:37,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:37,897 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:37,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states.
[2022-02-09 02:19:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1290.
[2022-02-09 02:19:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 3.9076803723816913) internal successors, (5037), 1289 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5037 transitions.
[2022-02-09 02:19:37,920 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5037 transitions. Word has length 25
[2022-02-09 02:19:37,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:37,920 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5037 transitions.
[2022-02-09 02:19:37,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5037 transitions.
[2022-02-09 02:19:37,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:37,922 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:37,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:37,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422
[2022-02-09 02:19:37,922 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1720219113, now seen corresponding path program 419 times
[2022-02-09 02:19:37,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:37,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773191297]
[2022-02-09 02:19:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:37,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:38,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:38,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773191297]
[2022-02-09 02:19:38,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773191297] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:38,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:38,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:38,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094622728]
[2022-02-09 02:19:38,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:38,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:38,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:38,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:38,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:38,061 INFO L87 Difference]: Start difference. First operand 1290 states and 5037 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:38,170 INFO L93 Difference]: Finished difference Result 2790 states and 10190 transitions.
[2022-02-09 02:19:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:38,177 INFO L225 Difference]: With dead ends: 2790
[2022-02-09 02:19:38,177 INFO L226 Difference]: Without dead ends: 2615
[2022-02-09 02:19:38,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:38,177 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 122 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:38,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 142 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states.
[2022-02-09 02:19:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1330.
[2022-02-09 02:19:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.8954100827689992) internal successors, (5177), 1329 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 5177 transitions.
[2022-02-09 02:19:38,202 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 5177 transitions. Word has length 25
[2022-02-09 02:19:38,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:38,202 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 5177 transitions.
[2022-02-09 02:19:38,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 5177 transitions.
[2022-02-09 02:19:38,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:38,204 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:38,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:38,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423
[2022-02-09 02:19:38,204 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash 919223797, now seen corresponding path program 420 times
[2022-02-09 02:19:38,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:38,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093482976]
[2022-02-09 02:19:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:38,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:38,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:38,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093482976]
[2022-02-09 02:19:38,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093482976] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:38,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:38,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:38,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558274500]
[2022-02-09 02:19:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:38,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:38,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:38,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:38,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:38,325 INFO L87 Difference]: Start difference. First operand 1330 states and 5177 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:38,442 INFO L93 Difference]: Finished difference Result 2742 states and 9990 transitions.
[2022-02-09 02:19:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:38,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:38,448 INFO L225 Difference]: With dead ends: 2742
[2022-02-09 02:19:38,448 INFO L226 Difference]: Without dead ends: 2464
[2022-02-09 02:19:38,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:38,449 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:38,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 172 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states.
[2022-02-09 02:19:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1274.
[2022-02-09 02:19:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.912804399057345) internal successors, (4981), 1273 states have internal predecessors, (4981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4981 transitions.
[2022-02-09 02:19:38,472 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4981 transitions. Word has length 25
[2022-02-09 02:19:38,472 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:38,472 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4981 transitions.
[2022-02-09 02:19:38,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4981 transitions.
[2022-02-09 02:19:38,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:38,474 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:38,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:38,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424
[2022-02-09 02:19:38,474 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1970564649, now seen corresponding path program 421 times
[2022-02-09 02:19:38,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:38,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857490263]
[2022-02-09 02:19:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:38,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:38,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:38,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857490263]
[2022-02-09 02:19:38,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857490263] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:38,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:38,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:38,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350738841]
[2022-02-09 02:19:38,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:38,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:38,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:38,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:38,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:38,597 INFO L87 Difference]: Start difference. First operand 1274 states and 4981 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:38,713 INFO L93 Difference]: Finished difference Result 2600 states and 9504 transitions.
[2022-02-09 02:19:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:38,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:38,719 INFO L225 Difference]: With dead ends: 2600
[2022-02-09 02:19:38,719 INFO L226 Difference]: Without dead ends: 2441
[2022-02-09 02:19:38,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:38,720 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:38,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 181 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states.
[2022-02-09 02:19:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1298.
[2022-02-09 02:19:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.905165767154973) internal successors, (5065), 1297 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5065 transitions.
[2022-02-09 02:19:38,743 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5065 transitions. Word has length 25
[2022-02-09 02:19:38,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:38,743 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5065 transitions.
[2022-02-09 02:19:38,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5065 transitions.
[2022-02-09 02:19:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:38,745 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:38,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:38,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425
[2022-02-09 02:19:38,745 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:38,745 INFO L85 PathProgramCache]: Analyzing trace with hash -290068009, now seen corresponding path program 422 times
[2022-02-09 02:19:38,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:38,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365468122]
[2022-02-09 02:19:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:38,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:38,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:38,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365468122]
[2022-02-09 02:19:38,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365468122] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:38,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:38,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:38,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613654002]
[2022-02-09 02:19:38,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:38,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:38,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:38,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:38,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:38,867 INFO L87 Difference]: Start difference. First operand 1298 states and 5065 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:38,975 INFO L93 Difference]: Finished difference Result 2624 states and 9580 transitions.
[2022-02-09 02:19:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:38,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:38,981 INFO L225 Difference]: With dead ends: 2624
[2022-02-09 02:19:38,981 INFO L226 Difference]: Without dead ends: 2425
[2022-02-09 02:19:38,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:38,981 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 120 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:38,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 138 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:38,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states.
[2022-02-09 02:19:39,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1282.
[2022-02-09 02:19:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.910226385636222) internal successors, (5009), 1281 states have internal predecessors, (5009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5009 transitions.
[2022-02-09 02:19:39,004 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5009 transitions. Word has length 25
[2022-02-09 02:19:39,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:39,004 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5009 transitions.
[2022-02-09 02:19:39,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5009 transitions.
[2022-02-09 02:19:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:39,006 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:39,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:39,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426
[2022-02-09 02:19:39,006 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1477605685, now seen corresponding path program 423 times
[2022-02-09 02:19:39,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:39,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626514922]
[2022-02-09 02:19:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:39,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:39,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:39,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626514922]
[2022-02-09 02:19:39,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626514922] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:39,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:39,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:39,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452328206]
[2022-02-09 02:19:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:39,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:39,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:39,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:39,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:39,127 INFO L87 Difference]: Start difference. First operand 1282 states and 5009 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:39,235 INFO L93 Difference]: Finished difference Result 2544 states and 9292 transitions.
[2022-02-09 02:19:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:39,240 INFO L225 Difference]: With dead ends: 2544
[2022-02-09 02:19:39,240 INFO L226 Difference]: Without dead ends: 2385
[2022-02-09 02:19:39,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:39,241 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:39,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 161 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states.
[2022-02-09 02:19:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1298.
[2022-02-09 02:19:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.8989976869699308) internal successors, (5057), 1297 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5057 transitions.
[2022-02-09 02:19:39,263 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5057 transitions. Word has length 25
[2022-02-09 02:19:39,263 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:39,263 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5057 transitions.
[2022-02-09 02:19:39,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5057 transitions.
[2022-02-09 02:19:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:39,265 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:39,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:39,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427
[2022-02-09 02:19:39,265 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:39,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:39,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2119944663, now seen corresponding path program 424 times
[2022-02-09 02:19:39,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:39,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61382618]
[2022-02-09 02:19:39,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:39,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:39,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:39,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61382618]
[2022-02-09 02:19:39,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61382618] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:39,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:39,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:39,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599166395]
[2022-02-09 02:19:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:39,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:39,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:39,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:39,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:39,389 INFO L87 Difference]: Start difference. First operand 1298 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:39,503 INFO L93 Difference]: Finished difference Result 2432 states and 8955 transitions.
[2022-02-09 02:19:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:39,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:39,508 INFO L225 Difference]: With dead ends: 2432
[2022-02-09 02:19:39,508 INFO L226 Difference]: Without dead ends: 2241
[2022-02-09 02:19:39,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:39,508 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 92 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:39,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:39,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states.
[2022-02-09 02:19:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1282.
[2022-02-09 02:19:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.9039812646370025) internal successors, (5001), 1281 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5001 transitions.
[2022-02-09 02:19:39,532 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5001 transitions. Word has length 25
[2022-02-09 02:19:39,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:39,532 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5001 transitions.
[2022-02-09 02:19:39,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5001 transitions.
[2022-02-09 02:19:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:39,534 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:39,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:39,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428
[2022-02-09 02:19:39,534 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1497313751, now seen corresponding path program 425 times
[2022-02-09 02:19:39,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:39,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68948625]
[2022-02-09 02:19:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:39,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:39,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:39,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68948625]
[2022-02-09 02:19:39,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68948625] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:39,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:39,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:39,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040593678]
[2022-02-09 02:19:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:39,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:39,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:39,659 INFO L87 Difference]: Start difference. First operand 1282 states and 5001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:39,777 INFO L93 Difference]: Finished difference Result 2448 states and 9027 transitions.
[2022-02-09 02:19:39,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:39,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:39,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:39,796 INFO L225 Difference]: With dead ends: 2448
[2022-02-09 02:19:39,796 INFO L226 Difference]: Without dead ends: 2265
[2022-02-09 02:19:39,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:39,796 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 92 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:39,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 163 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states.
[2022-02-09 02:19:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 1306.
[2022-02-09 02:19:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8904214559386974) internal successors, (5077), 1305 states have internal predecessors, (5077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5077 transitions.
[2022-02-09 02:19:39,819 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5077 transitions. Word has length 25
[2022-02-09 02:19:39,819 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:39,819 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5077 transitions.
[2022-02-09 02:19:39,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5077 transitions.
[2022-02-09 02:19:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:39,821 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:39,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:39,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429
[2022-02-09 02:19:39,822 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash -546023243, now seen corresponding path program 426 times
[2022-02-09 02:19:39,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:39,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045722011]
[2022-02-09 02:19:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:39,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:39,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:39,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045722011]
[2022-02-09 02:19:39,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045722011] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:39,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:39,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:39,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352847274]
[2022-02-09 02:19:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:39,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:39,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:39,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:39,948 INFO L87 Difference]: Start difference. First operand 1306 states and 5077 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:40,057 INFO L93 Difference]: Finished difference Result 2264 states and 8414 transitions.
[2022-02-09 02:19:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:40,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:40,062 INFO L225 Difference]: With dead ends: 2264
[2022-02-09 02:19:40,062 INFO L226 Difference]: Without dead ends: 2057
[2022-02-09 02:19:40,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:40,063 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 76 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:40,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 150 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states.
[2022-02-09 02:19:40,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1274.
[2022-02-09 02:19:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.9096622152395915) internal successors, (4977), 1273 states have internal predecessors, (4977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4977 transitions.
[2022-02-09 02:19:40,086 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4977 transitions. Word has length 25
[2022-02-09 02:19:40,086 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:40,086 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4977 transitions.
[2022-02-09 02:19:40,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4977 transitions.
[2022-02-09 02:19:40,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:40,088 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:40,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:40,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430
[2022-02-09 02:19:40,089 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:40,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:40,089 INFO L85 PathProgramCache]: Analyzing trace with hash 404343255, now seen corresponding path program 427 times
[2022-02-09 02:19:40,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:40,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424505710]
[2022-02-09 02:19:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:40,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:40,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:40,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424505710]
[2022-02-09 02:19:40,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424505710] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:40,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:40,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:40,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102099024]
[2022-02-09 02:19:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:40,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:40,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:40,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:40,210 INFO L87 Difference]: Start difference. First operand 1274 states and 4977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:40,319 INFO L93 Difference]: Finished difference Result 2823 states and 10363 transitions.
[2022-02-09 02:19:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:40,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:40,326 INFO L225 Difference]: With dead ends: 2823
[2022-02-09 02:19:40,326 INFO L226 Difference]: Without dead ends: 2640
[2022-02-09 02:19:40,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:40,326 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:40,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 140 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states.
[2022-02-09 02:19:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 1318.
[2022-02-09 02:19:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1317 states have (on average 3.906605922551253) internal successors, (5145), 1317 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 5145 transitions.
[2022-02-09 02:19:40,354 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 5145 transitions. Word has length 25
[2022-02-09 02:19:40,354 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:40,354 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 5145 transitions.
[2022-02-09 02:19:40,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 5145 transitions.
[2022-02-09 02:19:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:40,356 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:40,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:40,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431
[2022-02-09 02:19:40,356 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1638993739, now seen corresponding path program 428 times
[2022-02-09 02:19:40,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:40,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462078144]
[2022-02-09 02:19:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:40,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:40,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:40,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462078144]
[2022-02-09 02:19:40,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462078144] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:40,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:40,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:40,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380054224]
[2022-02-09 02:19:40,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:40,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:40,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:40,478 INFO L87 Difference]: Start difference. First operand 1318 states and 5145 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:40,590 INFO L93 Difference]: Finished difference Result 2815 states and 10311 transitions.
[2022-02-09 02:19:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:40,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:40,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:40,597 INFO L225 Difference]: With dead ends: 2815
[2022-02-09 02:19:40,597 INFO L226 Difference]: Without dead ends: 2616
[2022-02-09 02:19:40,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:40,597 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:40,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 141 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states.
[2022-02-09 02:19:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 1294.
[2022-02-09 02:19:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9110595514307813) internal successors, (5057), 1293 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions.
[2022-02-09 02:19:40,621 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25
[2022-02-09 02:19:40,621 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:40,621 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions.
[2022-02-09 02:19:40,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions.
[2022-02-09 02:19:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:40,624 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:40,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:40,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432
[2022-02-09 02:19:40,624 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1416692171, now seen corresponding path program 429 times
[2022-02-09 02:19:40,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:40,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674633806]
[2022-02-09 02:19:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:40,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:40,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:40,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674633806]
[2022-02-09 02:19:40,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674633806] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:40,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:40,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:40,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345172497]
[2022-02-09 02:19:40,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:40,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:40,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:40,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:40,749 INFO L87 Difference]: Start difference. First operand 1294 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:40,859 INFO L93 Difference]: Finished difference Result 2751 states and 10075 transitions.
[2022-02-09 02:19:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:40,865 INFO L225 Difference]: With dead ends: 2751
[2022-02-09 02:19:40,865 INFO L226 Difference]: Without dead ends: 2568
[2022-02-09 02:19:40,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:40,866 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:40,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 147 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:40,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states.
[2022-02-09 02:19:40,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 1338.
[2022-02-09 02:19:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.8960359012715036) internal successors, (5209), 1337 states have internal predecessors, (5209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5209 transitions.
[2022-02-09 02:19:40,890 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5209 transitions. Word has length 25
[2022-02-09 02:19:40,890 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:40,890 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5209 transitions.
[2022-02-09 02:19:40,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:40,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5209 transitions.
[2022-02-09 02:19:40,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:40,892 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:40,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:40,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433
[2022-02-09 02:19:40,892 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:40,893 INFO L85 PathProgramCache]: Analyzing trace with hash -699124171, now seen corresponding path program 430 times
[2022-02-09 02:19:40,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:40,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399970916]
[2022-02-09 02:19:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:40,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:41,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:41,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399970916]
[2022-02-09 02:19:41,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399970916] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:41,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:41,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:41,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812806290]
[2022-02-09 02:19:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:41,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:41,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:41,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:41,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:41,016 INFO L87 Difference]: Start difference. First operand 1338 states and 5209 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:41,122 INFO L93 Difference]: Finished difference Result 2790 states and 10178 transitions.
[2022-02-09 02:19:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:41,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:41,128 INFO L225 Difference]: With dead ends: 2790
[2022-02-09 02:19:41,128 INFO L226 Difference]: Without dead ends: 2524
[2022-02-09 02:19:41,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:41,128 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:41,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:41,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states.
[2022-02-09 02:19:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1294.
[2022-02-09 02:19:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.8955916473317864) internal successors, (5037), 1293 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5037 transitions.
[2022-02-09 02:19:41,154 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5037 transitions. Word has length 25
[2022-02-09 02:19:41,154 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:41,154 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5037 transitions.
[2022-02-09 02:19:41,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5037 transitions.
[2022-02-09 02:19:41,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:41,156 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:41,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:41,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434
[2022-02-09 02:19:41,156 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash -434344557, now seen corresponding path program 431 times
[2022-02-09 02:19:41,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:41,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603989654]
[2022-02-09 02:19:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:41,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:41,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:41,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603989654]
[2022-02-09 02:19:41,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603989654] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:41,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:41,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:41,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232507596]
[2022-02-09 02:19:41,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:41,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:41,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:41,278 INFO L87 Difference]: Start difference. First operand 1294 states and 5037 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:41,391 INFO L93 Difference]: Finished difference Result 2691 states and 9819 transitions.
[2022-02-09 02:19:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:41,396 INFO L225 Difference]: With dead ends: 2691
[2022-02-09 02:19:41,396 INFO L226 Difference]: Without dead ends: 2516
[2022-02-09 02:19:41,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:41,397 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:41,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 149 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states.
[2022-02-09 02:19:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 1334.
[2022-02-09 02:19:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1333 states have (on average 3.883720930232558) internal successors, (5177), 1333 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 5177 transitions.
[2022-02-09 02:19:41,420 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 5177 transitions. Word has length 25
[2022-02-09 02:19:41,420 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:41,420 INFO L470 AbstractCegarLoop]: Abstraction has 1334 states and 5177 transitions.
[2022-02-09 02:19:41,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 5177 transitions.
[2022-02-09 02:19:41,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:41,422 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:41,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:41,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435
[2022-02-09 02:19:41,422 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:41,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:41,423 INFO L85 PathProgramCache]: Analyzing trace with hash -215992971, now seen corresponding path program 432 times
[2022-02-09 02:19:41,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:41,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205040884]
[2022-02-09 02:19:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:41,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:41,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:41,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205040884]
[2022-02-09 02:19:41,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205040884] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:41,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:41,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:41,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167953496]
[2022-02-09 02:19:41,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:41,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:41,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:41,548 INFO L87 Difference]: Start difference. First operand 1334 states and 5177 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:41,646 INFO L93 Difference]: Finished difference Result 2643 states and 9619 transitions.
[2022-02-09 02:19:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:41,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:41,653 INFO L225 Difference]: With dead ends: 2643
[2022-02-09 02:19:41,653 INFO L226 Difference]: Without dead ends: 2353
[2022-02-09 02:19:41,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:41,653 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:41,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 130 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states.
[2022-02-09 02:19:41,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1266.
[2022-02-09 02:19:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.915415019762846) internal successors, (4953), 1265 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4953 transitions.
[2022-02-09 02:19:41,683 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4953 transitions. Word has length 25
[2022-02-09 02:19:41,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:41,683 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4953 transitions.
[2022-02-09 02:19:41,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4953 transitions.
[2022-02-09 02:19:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:41,685 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:41,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:41,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436
[2022-02-09 02:19:41,685 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:41,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1690129657, now seen corresponding path program 433 times
[2022-02-09 02:19:41,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:41,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938663524]
[2022-02-09 02:19:41,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:41,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:41,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:41,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938663524]
[2022-02-09 02:19:41,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938663524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:41,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:41,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:41,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668178994]
[2022-02-09 02:19:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:41,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:41,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:41,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:41,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:41,812 INFO L87 Difference]: Start difference. First operand 1266 states and 4953 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:41,912 INFO L93 Difference]: Finished difference Result 2549 states and 9317 transitions.
[2022-02-09 02:19:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:41,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:41,918 INFO L225 Difference]: With dead ends: 2549
[2022-02-09 02:19:41,918 INFO L226 Difference]: Without dead ends: 2390
[2022-02-09 02:19:41,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:41,919 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:41,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states.
[2022-02-09 02:19:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1294.
[2022-02-09 02:19:41,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9110595514307813) internal successors, (5057), 1293 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions.
[2022-02-09 02:19:41,940 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25
[2022-02-09 02:19:41,940 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:41,940 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions.
[2022-02-09 02:19:41,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions.
[2022-02-09 02:19:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:41,942 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:41,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:41,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437
[2022-02-09 02:19:41,942 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1596539655, now seen corresponding path program 434 times
[2022-02-09 02:19:41,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:41,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277406956]
[2022-02-09 02:19:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:41,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:42,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:42,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277406956]
[2022-02-09 02:19:42,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277406956] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:42,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:42,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:42,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151872787]
[2022-02-09 02:19:42,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:42,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:42,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:42,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:42,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:42,070 INFO L87 Difference]: Start difference. First operand 1294 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:42,182 INFO L93 Difference]: Finished difference Result 2577 states and 9405 transitions.
[2022-02-09 02:19:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:42,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:42,188 INFO L225 Difference]: With dead ends: 2577
[2022-02-09 02:19:42,188 INFO L226 Difference]: Without dead ends: 2374
[2022-02-09 02:19:42,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:42,189 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:42,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 155 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states.
[2022-02-09 02:19:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1278.
[2022-02-09 02:19:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9162098668754894) internal successors, (5001), 1277 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 5001 transitions.
[2022-02-09 02:19:42,213 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 5001 transitions. Word has length 25
[2022-02-09 02:19:42,213 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:42,213 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 5001 transitions.
[2022-02-09 02:19:42,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 5001 transitions.
[2022-02-09 02:19:42,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:42,215 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:42,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:42,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438
[2022-02-09 02:19:42,216 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:42,216 INFO L85 PathProgramCache]: Analyzing trace with hash 843332695, now seen corresponding path program 435 times
[2022-02-09 02:19:42,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:42,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244458764]
[2022-02-09 02:19:42,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:42,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:42,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:42,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244458764]
[2022-02-09 02:19:42,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244458764] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:42,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:42,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:42,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445650443]
[2022-02-09 02:19:42,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:42,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:42,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:42,333 INFO L87 Difference]: Start difference. First operand 1278 states and 5001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:42,435 INFO L93 Difference]: Finished difference Result 2545 states and 9297 transitions.
[2022-02-09 02:19:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:42,441 INFO L225 Difference]: With dead ends: 2545
[2022-02-09 02:19:42,441 INFO L226 Difference]: Without dead ends: 2386
[2022-02-09 02:19:42,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:42,442 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:42,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 157 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states.
[2022-02-09 02:19:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1294.
[2022-02-09 02:19:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9048723897911835) internal successors, (5049), 1293 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions.
[2022-02-09 02:19:42,466 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25
[2022-02-09 02:19:42,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:42,466 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions.
[2022-02-09 02:19:42,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions.
[2022-02-09 02:19:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:42,468 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:42,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:42,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439
[2022-02-09 02:19:42,468 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 813473017, now seen corresponding path program 436 times
[2022-02-09 02:19:42,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:42,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222146522]
[2022-02-09 02:19:42,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:42,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:42,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:42,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222146522]
[2022-02-09 02:19:42,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222146522] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:42,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:42,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:42,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026854017]
[2022-02-09 02:19:42,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:42,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:42,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:42,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:42,589 INFO L87 Difference]: Start difference. First operand 1294 states and 5049 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:42,701 INFO L93 Difference]: Finished difference Result 2569 states and 9373 transitions.
[2022-02-09 02:19:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:42,707 INFO L225 Difference]: With dead ends: 2569
[2022-02-09 02:19:42,707 INFO L226 Difference]: Without dead ends: 2370
[2022-02-09 02:19:42,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:42,707 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:42,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:42,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states.
[2022-02-09 02:19:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1278.
[2022-02-09 02:19:42,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9099451840250588) internal successors, (4993), 1277 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions.
[2022-02-09 02:19:42,731 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25
[2022-02-09 02:19:42,731 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:42,731 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions.
[2022-02-09 02:19:42,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions.
[2022-02-09 02:19:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:42,733 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:42,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:42,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440
[2022-02-09 02:19:42,734 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:42,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1546971911, now seen corresponding path program 437 times
[2022-02-09 02:19:42,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:42,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691586116]
[2022-02-09 02:19:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:42,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:42,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:42,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691586116]
[2022-02-09 02:19:42,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691586116] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:42,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:42,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:42,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892010003]
[2022-02-09 02:19:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:42,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:42,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:42,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:42,850 INFO L87 Difference]: Start difference. First operand 1278 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:42,952 INFO L93 Difference]: Finished difference Result 2613 states and 9549 transitions.
[2022-02-09 02:19:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:42,958 INFO L225 Difference]: With dead ends: 2613
[2022-02-09 02:19:42,958 INFO L226 Difference]: Without dead ends: 2426
[2022-02-09 02:19:42,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:42,959 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:42,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states.
[2022-02-09 02:19:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1306.
[2022-02-09 02:19:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.893486590038314) internal successors, (5081), 1305 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions.
[2022-02-09 02:19:42,984 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25
[2022-02-09 02:19:42,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:42,984 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions.
[2022-02-09 02:19:42,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:42,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions.
[2022-02-09 02:19:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:42,986 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:42,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:42,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441
[2022-02-09 02:19:42,986 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash 704658391, now seen corresponding path program 438 times
[2022-02-09 02:19:42,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:42,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967239156]
[2022-02-09 02:19:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:42,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:43,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:43,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967239156]
[2022-02-09 02:19:43,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967239156] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:43,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:43,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:43,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549665191]
[2022-02-09 02:19:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:43,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:43,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:43,107 INFO L87 Difference]: Start difference. First operand 1306 states and 5081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:43,217 INFO L93 Difference]: Finished difference Result 2609 states and 9509 transitions.
[2022-02-09 02:19:43,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:43,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:43,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:43,223 INFO L225 Difference]: With dead ends: 2609
[2022-02-09 02:19:43,223 INFO L226 Difference]: Without dead ends: 2390
[2022-02-09 02:19:43,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:43,223 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:43,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states.
[2022-02-09 02:19:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1270.
[2022-02-09 02:19:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9156816390858946) internal successors, (4969), 1269 states have internal predecessors, (4969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions.
[2022-02-09 02:19:43,246 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25
[2022-02-09 02:19:43,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:43,246 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions.
[2022-02-09 02:19:43,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions.
[2022-02-09 02:19:43,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:43,248 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:43,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:43,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442
[2022-02-09 02:19:43,248 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:43,249 INFO L85 PathProgramCache]: Analyzing trace with hash -332931881, now seen corresponding path program 439 times
[2022-02-09 02:19:43,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:43,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390782029]
[2022-02-09 02:19:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:43,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:43,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:43,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390782029]
[2022-02-09 02:19:43,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390782029] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:43,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:43,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:43,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315825469]
[2022-02-09 02:19:43,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:43,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:43,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:43,371 INFO L87 Difference]: Start difference. First operand 1270 states and 4969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:43,464 INFO L93 Difference]: Finished difference Result 2513 states and 9169 transitions.
[2022-02-09 02:19:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:43,470 INFO L225 Difference]: With dead ends: 2513
[2022-02-09 02:19:43,470 INFO L226 Difference]: Without dead ends: 2354
[2022-02-09 02:19:43,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:43,470 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 130 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:43,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:43,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states.
[2022-02-09 02:19:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1294.
[2022-02-09 02:19:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.907965970610982) internal successors, (5053), 1293 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5053 transitions.
[2022-02-09 02:19:43,495 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5053 transitions. Word has length 25
[2022-02-09 02:19:43,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:43,495 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5053 transitions.
[2022-02-09 02:19:43,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5053 transitions.
[2022-02-09 02:19:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:43,497 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:43,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:43,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443
[2022-02-09 02:19:43,497 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:43,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash 675366103, now seen corresponding path program 440 times
[2022-02-09 02:19:43,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:43,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37852916]
[2022-02-09 02:19:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:43,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:43,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:43,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37852916]
[2022-02-09 02:19:43,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37852916] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:43,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:43,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:43,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686192621]
[2022-02-09 02:19:43,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:43,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:43,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:43,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:43,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:43,620 INFO L87 Difference]: Start difference. First operand 1294 states and 5053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:43,733 INFO L93 Difference]: Finished difference Result 2541 states and 9257 transitions.
[2022-02-09 02:19:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:43,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:43,739 INFO L225 Difference]: With dead ends: 2541
[2022-02-09 02:19:43,739 INFO L226 Difference]: Without dead ends: 2338
[2022-02-09 02:19:43,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:43,739 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:43,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states.
[2022-02-09 02:19:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1278.
[2022-02-09 02:19:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.913077525450274) internal successors, (4997), 1277 states have internal predecessors, (4997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4997 transitions.
[2022-02-09 02:19:43,763 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4997 transitions. Word has length 25
[2022-02-09 02:19:43,764 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:43,764 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4997 transitions.
[2022-02-09 02:19:43,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4997 transitions.
[2022-02-09 02:19:43,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:43,766 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:43,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:43,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444
[2022-02-09 02:19:43,766 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:43,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:43,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1128958761, now seen corresponding path program 441 times
[2022-02-09 02:19:43,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:43,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457414759]
[2022-02-09 02:19:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:43,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:43,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:43,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457414759]
[2022-02-09 02:19:43,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457414759] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:43,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:43,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:43,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324544301]
[2022-02-09 02:19:43,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:43,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:43,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:43,890 INFO L87 Difference]: Start difference. First operand 1278 states and 4997 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:43,992 INFO L93 Difference]: Finished difference Result 2469 states and 9009 transitions.
[2022-02-09 02:19:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:43,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:43,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:43,998 INFO L225 Difference]: With dead ends: 2469
[2022-02-09 02:19:43,999 INFO L226 Difference]: Without dead ends: 2310
[2022-02-09 02:19:43,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:43,999 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:43,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:44,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states.
[2022-02-09 02:19:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1294.
[2022-02-09 02:19:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9017788089713843) internal successors, (5045), 1293 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5045 transitions.
[2022-02-09 02:19:44,023 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5045 transitions. Word has length 25
[2022-02-09 02:19:44,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:44,023 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5045 transitions.
[2022-02-09 02:19:44,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5045 transitions.
[2022-02-09 02:19:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:44,025 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:44,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:44,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445
[2022-02-09 02:19:44,025 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1774490375, now seen corresponding path program 442 times
[2022-02-09 02:19:44,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:44,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723560825]
[2022-02-09 02:19:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:44,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:44,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:44,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723560825]
[2022-02-09 02:19:44,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723560825] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:44,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:44,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:44,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814056095]
[2022-02-09 02:19:44,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:44,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:44,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:44,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:44,147 INFO L87 Difference]: Start difference. First operand 1294 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:44,271 INFO L93 Difference]: Finished difference Result 2357 states and 8672 transitions.
[2022-02-09 02:19:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:44,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:44,276 INFO L225 Difference]: With dead ends: 2357
[2022-02-09 02:19:44,276 INFO L226 Difference]: Without dead ends: 2166
[2022-02-09 02:19:44,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:44,276 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:44,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 178 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states.
[2022-02-09 02:19:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1278.
[2022-02-09 02:19:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.906812842599843) internal successors, (4989), 1277 states have internal predecessors, (4989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4989 transitions.
[2022-02-09 02:19:44,298 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4989 transitions. Word has length 25
[2022-02-09 02:19:44,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:44,298 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4989 transitions.
[2022-02-09 02:19:44,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4989 transitions.
[2022-02-09 02:19:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:44,300 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:44,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:44,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446
[2022-02-09 02:19:44,309 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:44,309 INFO L85 PathProgramCache]: Analyzing trace with hash -512166663, now seen corresponding path program 443 times
[2022-02-09 02:19:44,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:44,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479908313]
[2022-02-09 02:19:44,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:44,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:44,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:44,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479908313]
[2022-02-09 02:19:44,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479908313] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:44,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:44,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:44,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094239604]
[2022-02-09 02:19:44,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:44,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:44,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:44,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:44,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:44,424 INFO L87 Difference]: Start difference. First operand 1278 states and 4989 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:44,539 INFO L93 Difference]: Finished difference Result 2505 states and 9141 transitions.
[2022-02-09 02:19:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:44,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:44,545 INFO L225 Difference]: With dead ends: 2505
[2022-02-09 02:19:44,545 INFO L226 Difference]: Without dead ends: 2318
[2022-02-09 02:19:44,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:44,545 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:44,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:44,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states.
[2022-02-09 02:19:44,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1302.
[2022-02-09 02:19:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 3.8931591083781707) internal successors, (5065), 1301 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5065 transitions.
[2022-02-09 02:19:44,568 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5065 transitions. Word has length 25
[2022-02-09 02:19:44,568 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:44,568 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5065 transitions.
[2022-02-09 02:19:44,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5065 transitions.
[2022-02-09 02:19:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:44,570 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:44,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:44,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447
[2022-02-09 02:19:44,571 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1904311209, now seen corresponding path program 444 times
[2022-02-09 02:19:44,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:44,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56158556]
[2022-02-09 02:19:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:44,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:44,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:44,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56158556]
[2022-02-09 02:19:44,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56158556] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:44,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:44,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:44,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533954284]
[2022-02-09 02:19:44,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:44,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:44,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:44,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:44,689 INFO L87 Difference]: Start difference. First operand 1302 states and 5065 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:44,802 INFO L93 Difference]: Finished difference Result 2365 states and 8692 transitions.
[2022-02-09 02:19:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:44,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:44,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:44,808 INFO L225 Difference]: With dead ends: 2365
[2022-02-09 02:19:44,808 INFO L226 Difference]: Without dead ends: 2158
[2022-02-09 02:19:44,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:44,808 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:44,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 165 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states.
[2022-02-09 02:19:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1270.
[2022-02-09 02:19:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9125295508274234) internal successors, (4965), 1269 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions.
[2022-02-09 02:19:44,830 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25
[2022-02-09 02:19:44,830 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:44,830 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions.
[2022-02-09 02:19:44,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions.
[2022-02-09 02:19:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:44,832 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:44,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:44,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448
[2022-02-09 02:19:44,832 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:44,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1189679947, now seen corresponding path program 445 times
[2022-02-09 02:19:44,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:44,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98756420]
[2022-02-09 02:19:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:44,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:44,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:44,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98756420]
[2022-02-09 02:19:44,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98756420] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:44,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:44,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:44,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697575793]
[2022-02-09 02:19:44,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:44,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:44,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:44,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:44,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:44,952 INFO L87 Difference]: Start difference. First operand 1270 states and 4965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:45,051 INFO L93 Difference]: Finished difference Result 2449 states and 8929 transitions.
[2022-02-09 02:19:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:45,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:45,057 INFO L225 Difference]: With dead ends: 2449
[2022-02-09 02:19:45,057 INFO L226 Difference]: Without dead ends: 2290
[2022-02-09 02:19:45,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:45,057 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:45,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 151 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:45,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states.
[2022-02-09 02:19:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1294.
[2022-02-09 02:19:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9048723897911835) internal successors, (5049), 1293 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions.
[2022-02-09 02:19:45,079 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25
[2022-02-09 02:19:45,079 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:45,079 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions.
[2022-02-09 02:19:45,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions.
[2022-02-09 02:19:45,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:45,081 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:45,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:45,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449
[2022-02-09 02:19:45,081 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1219539625, now seen corresponding path program 446 times
[2022-02-09 02:19:45,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:45,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306994792]
[2022-02-09 02:19:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:45,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:45,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:45,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306994792]
[2022-02-09 02:19:45,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306994792] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:45,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:45,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:45,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028310119]
[2022-02-09 02:19:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:45,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:45,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:45,201 INFO L87 Difference]: Start difference. First operand 1294 states and 5049 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:45,304 INFO L93 Difference]: Finished difference Result 2473 states and 9005 transitions.
[2022-02-09 02:19:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:45,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:45,309 INFO L225 Difference]: With dead ends: 2473
[2022-02-09 02:19:45,309 INFO L226 Difference]: Without dead ends: 2274
[2022-02-09 02:19:45,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:45,309 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 136 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:45,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 134 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states.
[2022-02-09 02:19:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1278.
[2022-02-09 02:19:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9099451840250588) internal successors, (4993), 1277 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions.
[2022-02-09 02:19:45,332 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25
[2022-02-09 02:19:45,332 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:45,332 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions.
[2022-02-09 02:19:45,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions.
[2022-02-09 02:19:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:45,334 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:45,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:45,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450
[2022-02-09 02:19:45,334 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:45,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1670581993, now seen corresponding path program 447 times
[2022-02-09 02:19:45,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:45,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922488726]
[2022-02-09 02:19:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:45,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:45,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:45,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922488726]
[2022-02-09 02:19:45,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922488726] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:45,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:45,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:45,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286903982]
[2022-02-09 02:19:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:45,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:45,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:45,458 INFO L87 Difference]: Start difference. First operand 1278 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:45,555 INFO L93 Difference]: Finished difference Result 2393 states and 8717 transitions.
[2022-02-09 02:19:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:45,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:45,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:45,560 INFO L225 Difference]: With dead ends: 2393
[2022-02-09 02:19:45,560 INFO L226 Difference]: Without dead ends: 2234
[2022-02-09 02:19:45,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:45,560 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:45,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 148 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states.
[2022-02-09 02:19:45,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1294.
[2022-02-09 02:19:45,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.8986852281515856) internal successors, (5041), 1293 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5041 transitions.
[2022-02-09 02:19:45,581 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5041 transitions. Word has length 25
[2022-02-09 02:19:45,581 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:45,582 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5041 transitions.
[2022-02-09 02:19:45,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5041 transitions.
[2022-02-09 02:19:45,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:45,584 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:45,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:45,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451
[2022-02-09 02:19:45,584 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:45,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:45,584 INFO L85 PathProgramCache]: Analyzing trace with hash 497415383, now seen corresponding path program 448 times
[2022-02-09 02:19:45,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:45,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836277967]
[2022-02-09 02:19:45,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:45,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:45,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:45,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836277967]
[2022-02-09 02:19:45,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836277967] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:45,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:45,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:45,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411949732]
[2022-02-09 02:19:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:45,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:45,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:45,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:45,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:45,703 INFO L87 Difference]: Start difference. First operand 1294 states and 5041 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:45,807 INFO L93 Difference]: Finished difference Result 2281 states and 8380 transitions.
[2022-02-09 02:19:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:45,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:45,812 INFO L225 Difference]: With dead ends: 2281
[2022-02-09 02:19:45,812 INFO L226 Difference]: Without dead ends: 2090
[2022-02-09 02:19:45,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:45,812 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:45,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 142 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states.
[2022-02-09 02:19:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1278.
[2022-02-09 02:19:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.903680501174628) internal successors, (4985), 1277 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4985 transitions.
[2022-02-09 02:19:45,835 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4985 transitions. Word has length 25
[2022-02-09 02:19:45,835 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:45,835 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4985 transitions.
[2022-02-09 02:19:45,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4985 transitions.
[2022-02-09 02:19:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:45,837 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:45,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:45,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452
[2022-02-09 02:19:45,838 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:45,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1194837241, now seen corresponding path program 449 times
[2022-02-09 02:19:45,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:45,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697547718]
[2022-02-09 02:19:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:45,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:45,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:45,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697547718]
[2022-02-09 02:19:45,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697547718] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:45,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:45,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:45,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346136410]
[2022-02-09 02:19:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:45,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:45,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:45,958 INFO L87 Difference]: Start difference. First operand 1278 states and 4985 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:46,071 INFO L93 Difference]: Finished difference Result 2297 states and 8452 transitions.
[2022-02-09 02:19:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:46,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:46,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:46,076 INFO L225 Difference]: With dead ends: 2297
[2022-02-09 02:19:46,076 INFO L226 Difference]: Without dead ends: 2114
[2022-02-09 02:19:46,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:46,076 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 91 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:46,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 155 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:46,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states.
[2022-02-09 02:19:46,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1302.
[2022-02-09 02:19:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 3.890084550345888) internal successors, (5061), 1301 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5061 transitions.
[2022-02-09 02:19:46,099 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5061 transitions. Word has length 25
[2022-02-09 02:19:46,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:46,099 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5061 transitions.
[2022-02-09 02:19:46,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5061 transitions.
[2022-02-09 02:19:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:46,101 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:46,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:46,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453
[2022-02-09 02:19:46,101 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash -848499753, now seen corresponding path program 450 times
[2022-02-09 02:19:46,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:46,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630655901]
[2022-02-09 02:19:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:46,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:46,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:46,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630655901]
[2022-02-09 02:19:46,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630655901] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:46,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:46,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:46,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862109868]
[2022-02-09 02:19:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:46,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:46,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:46,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:46,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:46,227 INFO L87 Difference]: Start difference. First operand 1302 states and 5061 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:46,353 INFO L93 Difference]: Finished difference Result 2113 states and 7839 transitions.
[2022-02-09 02:19:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:46,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:46,358 INFO L225 Difference]: With dead ends: 2113
[2022-02-09 02:19:46,358 INFO L226 Difference]: Without dead ends: 1906
[2022-02-09 02:19:46,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:46,359 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 75 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:46,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 171 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states.
[2022-02-09 02:19:46,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1270.
[2022-02-09 02:19:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions.
[2022-02-09 02:19:46,379 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25
[2022-02-09 02:19:46,379 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions.
[2022-02-09 02:19:46,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions.
[2022-02-09 02:19:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:46,381 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:46,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:46,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454
[2022-02-09 02:19:46,381 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018951, now seen corresponding path program 451 times
[2022-02-09 02:19:46,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:46,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483834487]
[2022-02-09 02:19:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:46,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:46,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:46,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483834487]
[2022-02-09 02:19:46,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483834487] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:46,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:46,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:46,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671623974]
[2022-02-09 02:19:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:46,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:46,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:46,501 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:46,599 INFO L93 Difference]: Finished difference Result 2345 states and 8652 transitions.
[2022-02-09 02:19:46,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:46,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:46,603 INFO L225 Difference]: With dead ends: 2345
[2022-02-09 02:19:46,604 INFO L226 Difference]: Without dead ends: 2158
[2022-02-09 02:19:46,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:46,604 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 101 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:46,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 136 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states.
[2022-02-09 02:19:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1310.
[2022-02-09 02:19:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1309 states have (on average 3.8999236058059585) internal successors, (5105), 1309 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 5105 transitions.
[2022-02-09 02:19:46,626 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 5105 transitions. Word has length 25
[2022-02-09 02:19:46,626 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:46,626 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 5105 transitions.
[2022-02-09 02:19:46,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 5105 transitions.
[2022-02-09 02:19:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:46,628 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:46,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:46,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455
[2022-02-09 02:19:46,628 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash 391611351, now seen corresponding path program 452 times
[2022-02-09 02:19:46,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:46,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160850893]
[2022-02-09 02:19:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:46,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:46,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:46,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160850893]
[2022-02-09 02:19:46,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160850893] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:46,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:46,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:46,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259304627]
[2022-02-09 02:19:46,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:46,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:46,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:46,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:46,756 INFO L87 Difference]: Start difference. First operand 1310 states and 5105 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:46,863 INFO L93 Difference]: Finished difference Result 2341 states and 8612 transitions.
[2022-02-09 02:19:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:46,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:46,868 INFO L225 Difference]: With dead ends: 2341
[2022-02-09 02:19:46,868 INFO L226 Difference]: Without dead ends: 2130
[2022-02-09 02:19:46,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:46,869 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 97 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:46,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states.
[2022-02-09 02:19:46,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1282.
[2022-02-09 02:19:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.907103825136612) internal successors, (5005), 1281 states have internal predecessors, (5005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5005 transitions.
[2022-02-09 02:19:46,889 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5005 transitions. Word has length 25
[2022-02-09 02:19:46,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:46,889 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5005 transitions.
[2022-02-09 02:19:46,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5005 transitions.
[2022-02-09 02:19:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:46,891 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:46,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:46,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456
[2022-02-09 02:19:46,891 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:46,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1588151383, now seen corresponding path program 453 times
[2022-02-09 02:19:46,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:46,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555401052]
[2022-02-09 02:19:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:46,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:47,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:47,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555401052]
[2022-02-09 02:19:47,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555401052] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:47,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:47,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:47,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406369851]
[2022-02-09 02:19:47,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:47,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:47,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:47,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:47,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:47,007 INFO L87 Difference]: Start difference. First operand 1282 states and 5005 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:47,107 INFO L93 Difference]: Finished difference Result 2257 states and 8308 transitions.
[2022-02-09 02:19:47,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:47,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:47,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:47,112 INFO L225 Difference]: With dead ends: 2257
[2022-02-09 02:19:47,112 INFO L226 Difference]: Without dead ends: 2070
[2022-02-09 02:19:47,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:47,112 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:47,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states.
[2022-02-09 02:19:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1306.
[2022-02-09 02:19:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.893486590038314) internal successors, (5081), 1305 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions.
[2022-02-09 02:19:47,134 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25
[2022-02-09 02:19:47,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:47,134 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions.
[2022-02-09 02:19:47,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions.
[2022-02-09 02:19:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:47,136 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:47,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:47,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457
[2022-02-09 02:19:47,136 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:47,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1514349481, now seen corresponding path program 454 times
[2022-02-09 02:19:47,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:47,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827459754]
[2022-02-09 02:19:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:47,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:47,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:47,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827459754]
[2022-02-09 02:19:47,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827459754] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:47,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:47,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:47,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981041170]
[2022-02-09 02:19:47,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:47,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:47,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:47,253 INFO L87 Difference]: Start difference. First operand 1306 states and 5081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:47,354 INFO L93 Difference]: Finished difference Result 2117 states and 7859 transitions.
[2022-02-09 02:19:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:47,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:47,359 INFO L225 Difference]: With dead ends: 2117
[2022-02-09 02:19:47,359 INFO L226 Difference]: Without dead ends: 1918
[2022-02-09 02:19:47,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:47,359 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 96 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:47,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states.
[2022-02-09 02:19:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1282.
[2022-02-09 02:19:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.897736143637783) internal successors, (4993), 1281 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4993 transitions.
[2022-02-09 02:19:47,382 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4993 transitions. Word has length 25
[2022-02-09 02:19:47,382 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:47,382 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4993 transitions.
[2022-02-09 02:19:47,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4993 transitions.
[2022-02-09 02:19:47,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:47,384 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:47,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:47,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458
[2022-02-09 02:19:47,384 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:47,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:47,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1724468299, now seen corresponding path program 455 times
[2022-02-09 02:19:47,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:47,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021023239]
[2022-02-09 02:19:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:47,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:47,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:47,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021023239]
[2022-02-09 02:19:47,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021023239] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:47,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:47,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:47,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092209697]
[2022-02-09 02:19:47,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:47,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:47,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:47,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:47,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:47,503 INFO L87 Difference]: Start difference. First operand 1282 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:47,608 INFO L93 Difference]: Finished difference Result 2045 states and 7595 transitions.
[2022-02-09 02:19:47,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:47,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:47,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:47,613 INFO L225 Difference]: With dead ends: 2045
[2022-02-09 02:19:47,613 INFO L226 Difference]: Without dead ends: 1862
[2022-02-09 02:19:47,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:47,613 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:47,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 147 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:47,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states.
[2022-02-09 02:19:47,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1306.
[2022-02-09 02:19:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8842911877394637) internal successors, (5069), 1305 states have internal predecessors, (5069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5069 transitions.
[2022-02-09 02:19:47,635 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5069 transitions. Word has length 25
[2022-02-09 02:19:47,635 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:47,635 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5069 transitions.
[2022-02-09 02:19:47,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5069 transitions.
[2022-02-09 02:19:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:47,637 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:47,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:47,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459
[2022-02-09 02:19:47,637 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:47,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -643405673, now seen corresponding path program 456 times
[2022-02-09 02:19:47,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:47,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655405233]
[2022-02-09 02:19:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:47,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:47,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:47,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655405233]
[2022-02-09 02:19:47,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655405233] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:47,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:47,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:47,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880287080]
[2022-02-09 02:19:47,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:47,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:47,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:47,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:47,757 INFO L87 Difference]: Start difference. First operand 1306 states and 5069 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:47,857 INFO L93 Difference]: Finished difference Result 1861 states and 6982 transitions.
[2022-02-09 02:19:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:47,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:47,861 INFO L225 Difference]: With dead ends: 1861
[2022-02-09 02:19:47,861 INFO L226 Difference]: Without dead ends: 1646
[2022-02-09 02:19:47,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:47,861 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:47,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 141 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states.
[2022-02-09 02:19:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1266.
[2022-02-09 02:19:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.9138339920948617) internal successors, (4951), 1265 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4951 transitions.
[2022-02-09 02:19:47,880 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4951 transitions. Word has length 25
[2022-02-09 02:19:47,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:47,880 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4951 transitions.
[2022-02-09 02:19:47,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:47,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4951 transitions.
[2022-02-09 02:19:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:47,882 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:47,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:47,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460
[2022-02-09 02:19:47,883 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash 62321913, now seen corresponding path program 457 times
[2022-02-09 02:19:47,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:47,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387191011]
[2022-02-09 02:19:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:47,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:48,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:48,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387191011]
[2022-02-09 02:19:48,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387191011] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:48,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:48,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:48,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406052568]
[2022-02-09 02:19:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:48,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:48,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:48,001 INFO L87 Difference]: Start difference. First operand 1266 states and 4951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:48,109 INFO L93 Difference]: Finished difference Result 2910 states and 10765 transitions.
[2022-02-09 02:19:48,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:48,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:48,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:48,116 INFO L225 Difference]: With dead ends: 2910
[2022-02-09 02:19:48,116 INFO L226 Difference]: Without dead ends: 2723
[2022-02-09 02:19:48,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:48,116 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:48,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:48,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states.
[2022-02-09 02:19:48,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1316.
[2022-02-09 02:19:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 3.9133079847908747) internal successors, (5146), 1315 states have internal predecessors, (5146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 5146 transitions.
[2022-02-09 02:19:48,141 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 5146 transitions. Word has length 25
[2022-02-09 02:19:48,141 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:48,141 INFO L470 AbstractCegarLoop]: Abstraction has 1316 states and 5146 transitions.
[2022-02-09 02:19:48,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 5146 transitions.
[2022-02-09 02:19:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:48,143 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:48,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:48,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461
[2022-02-09 02:19:48,144 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1981015081, now seen corresponding path program 458 times
[2022-02-09 02:19:48,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:48,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298434550]
[2022-02-09 02:19:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:48,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:48,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:48,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:48,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298434550]
[2022-02-09 02:19:48,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298434550] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:48,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:48,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:48,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081282776]
[2022-02-09 02:19:48,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:48,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:48,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:48,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:48,263 INFO L87 Difference]: Start difference. First operand 1316 states and 5146 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:48,375 INFO L93 Difference]: Finished difference Result 2906 states and 10725 transitions.
[2022-02-09 02:19:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:48,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:48,381 INFO L225 Difference]: With dead ends: 2906
[2022-02-09 02:19:48,381 INFO L226 Difference]: Without dead ends: 2695
[2022-02-09 02:19:48,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:48,381 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:48,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 146 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states.
[2022-02-09 02:19:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 1288.
[2022-02-09 02:19:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.9207459207459205) internal successors, (5046), 1287 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5046 transitions.
[2022-02-09 02:19:48,405 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5046 transitions. Word has length 25
[2022-02-09 02:19:48,405 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:48,406 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5046 transitions.
[2022-02-09 02:19:48,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5046 transitions.
[2022-02-09 02:19:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:48,408 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:48,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:48,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462
[2022-02-09 02:19:48,408 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash -784475049, now seen corresponding path program 459 times
[2022-02-09 02:19:48,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:48,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629026309]
[2022-02-09 02:19:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:48,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:48,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:48,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629026309]
[2022-02-09 02:19:48,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629026309] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:48,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:48,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:48,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645394966]
[2022-02-09 02:19:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:48,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:48,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:48,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:48,526 INFO L87 Difference]: Start difference. First operand 1288 states and 5046 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:48,633 INFO L93 Difference]: Finished difference Result 2898 states and 10709 transitions.
[2022-02-09 02:19:48,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:48,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:48,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:48,639 INFO L225 Difference]: With dead ends: 2898
[2022-02-09 02:19:48,640 INFO L226 Difference]: Without dead ends: 2711
[2022-02-09 02:19:48,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:48,640 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 116 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:48,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:48,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states.
[2022-02-09 02:19:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 1312.
[2022-02-09 02:19:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 3.906941266209001) internal successors, (5122), 1311 states have internal predecessors, (5122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5122 transitions.
[2022-02-09 02:19:48,666 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5122 transitions. Word has length 25
[2022-02-09 02:19:48,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:48,666 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5122 transitions.
[2022-02-09 02:19:48,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5122 transitions.
[2022-02-09 02:19:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:48,668 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:48,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:48,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463
[2022-02-09 02:19:48,668 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:48,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash 407991383, now seen corresponding path program 460 times
[2022-02-09 02:19:48,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:48,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043600775]
[2022-02-09 02:19:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:48,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:48,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:48,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043600775]
[2022-02-09 02:19:48,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043600775] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:48,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:48,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:48,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544075120]
[2022-02-09 02:19:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:48,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:48,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:48,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:48,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:48,788 INFO L87 Difference]: Start difference. First operand 1312 states and 5122 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:48,902 INFO L93 Difference]: Finished difference Result 2886 states and 10645 transitions.
[2022-02-09 02:19:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:48,909 INFO L225 Difference]: With dead ends: 2886
[2022-02-09 02:19:48,909 INFO L226 Difference]: Without dead ends: 2687
[2022-02-09 02:19:48,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:48,909 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:48,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 142 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states.
[2022-02-09 02:19:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1288.
[2022-02-09 02:19:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.9114219114219115) internal successors, (5034), 1287 states have internal predecessors, (5034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5034 transitions.
[2022-02-09 02:19:48,935 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5034 transitions. Word has length 25
[2022-02-09 02:19:48,935 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:48,935 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5034 transitions.
[2022-02-09 02:19:48,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5034 transitions.
[2022-02-09 02:19:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:48,937 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:48,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:48,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464
[2022-02-09 02:19:48,937 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:48,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:48,937 INFO L85 PathProgramCache]: Analyzing trace with hash 197872565, now seen corresponding path program 461 times
[2022-02-09 02:19:48,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:48,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795482803]
[2022-02-09 02:19:48,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:48,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:49,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:49,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795482803]
[2022-02-09 02:19:49,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795482803] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:49,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:49,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:49,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587510293]
[2022-02-09 02:19:49,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:49,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:49,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:49,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:49,064 INFO L87 Difference]: Start difference. First operand 1288 states and 5034 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:49,171 INFO L93 Difference]: Finished difference Result 2890 states and 10673 transitions.
[2022-02-09 02:19:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:49,177 INFO L225 Difference]: With dead ends: 2890
[2022-02-09 02:19:49,177 INFO L226 Difference]: Without dead ends: 2707
[2022-02-09 02:19:49,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:49,178 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:49,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 135 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states.
[2022-02-09 02:19:49,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 1312.
[2022-02-09 02:19:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 3.8977879481311977) internal successors, (5110), 1311 states have internal predecessors, (5110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5110 transitions.
[2022-02-09 02:19:49,203 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5110 transitions. Word has length 25
[2022-02-09 02:19:49,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:49,203 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5110 transitions.
[2022-02-09 02:19:49,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5110 transitions.
[2022-02-09 02:19:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:49,205 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:49,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:49,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465
[2022-02-09 02:19:49,205 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1278935191, now seen corresponding path program 462 times
[2022-02-09 02:19:49,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:49,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033355902]
[2022-02-09 02:19:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:49,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:49,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:49,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033355902]
[2022-02-09 02:19:49,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033355902] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:49,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:49,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:49,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901263420]
[2022-02-09 02:19:49,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:49,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:49,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:49,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:49,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:49,320 INFO L87 Difference]: Start difference. First operand 1312 states and 5110 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:49,424 INFO L93 Difference]: Finished difference Result 2882 states and 10621 transitions.
[2022-02-09 02:19:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:49,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:49,430 INFO L225 Difference]: With dead ends: 2882
[2022-02-09 02:19:49,430 INFO L226 Difference]: Without dead ends: 2671
[2022-02-09 02:19:49,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:49,430 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 116 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:49,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 129 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states.
[2022-02-09 02:19:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 1276.
[2022-02-09 02:19:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9184313725490196) internal successors, (4996), 1275 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4996 transitions.
[2022-02-09 02:19:49,455 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4996 transitions. Word has length 25
[2022-02-09 02:19:49,455 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:49,455 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4996 transitions.
[2022-02-09 02:19:49,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4996 transitions.
[2022-02-09 02:19:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:49,457 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:49,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:49,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466
[2022-02-09 02:19:49,457 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1901033001, now seen corresponding path program 463 times
[2022-02-09 02:19:49,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:49,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000512632]
[2022-02-09 02:19:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:49,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:49,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:49,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000512632]
[2022-02-09 02:19:49,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000512632] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:49,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:49,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:49,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893378129]
[2022-02-09 02:19:49,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:49,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:49,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:49,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:49,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:49,573 INFO L87 Difference]: Start difference. First operand 1276 states and 4996 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:49,689 INFO L93 Difference]: Finished difference Result 2802 states and 10327 transitions.
[2022-02-09 02:19:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:49,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:49,696 INFO L225 Difference]: With dead ends: 2802
[2022-02-09 02:19:49,696 INFO L226 Difference]: Without dead ends: 2615
[2022-02-09 02:19:49,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:49,696 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:49,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states.
[2022-02-09 02:19:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1326.
[2022-02-09 02:19:49,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 3.913207547169811) internal successors, (5185), 1325 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 5185 transitions.
[2022-02-09 02:19:49,724 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 5185 transitions. Word has length 25
[2022-02-09 02:19:49,724 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:49,724 INFO L470 AbstractCegarLoop]: Abstraction has 1326 states and 5185 transitions.
[2022-02-09 02:19:49,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 5185 transitions.
[2022-02-09 02:19:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:49,726 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:49,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:49,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467
[2022-02-09 02:19:49,726 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:49,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash 350597301, now seen corresponding path program 464 times
[2022-02-09 02:19:49,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:49,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903599086]
[2022-02-09 02:19:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:49,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:49,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:49,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903599086]
[2022-02-09 02:19:49,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903599086] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:49,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:49,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:49,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118267630]
[2022-02-09 02:19:49,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:49,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:49,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:49,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:49,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:49,844 INFO L87 Difference]: Start difference. First operand 1326 states and 5185 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:49,961 INFO L93 Difference]: Finished difference Result 2798 states and 10287 transitions.
[2022-02-09 02:19:49,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:49,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:49,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:49,967 INFO L225 Difference]: With dead ends: 2798
[2022-02-09 02:19:49,967 INFO L226 Difference]: Without dead ends: 2587
[2022-02-09 02:19:49,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:49,967 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 100 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:49,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states.
[2022-02-09 02:19:49,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1298.
[2022-02-09 02:19:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.9190439475713186) internal successors, (5083), 1297 states have internal predecessors, (5083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5083 transitions.
[2022-02-09 02:19:49,993 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5083 transitions. Word has length 25
[2022-02-09 02:19:49,994 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:49,994 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5083 transitions.
[2022-02-09 02:19:49,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:49,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5083 transitions.
[2022-02-09 02:19:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:49,996 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:49,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:49,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468
[2022-02-09 02:19:49,996 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:49,996 INFO L85 PathProgramCache]: Analyzing trace with hash 487047639, now seen corresponding path program 465 times
[2022-02-09 02:19:49,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:49,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314347545]
[2022-02-09 02:19:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:49,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:50,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:50,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314347545]
[2022-02-09 02:19:50,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314347545] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:50,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:50,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:50,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574255794]
[2022-02-09 02:19:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:50,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:50,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:50,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:50,116 INFO L87 Difference]: Start difference. First operand 1298 states and 5083 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:50,225 INFO L93 Difference]: Finished difference Result 2859 states and 10515 transitions.
[2022-02-09 02:19:50,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:50,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:50,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:50,232 INFO L225 Difference]: With dead ends: 2859
[2022-02-09 02:19:50,232 INFO L226 Difference]: Without dead ends: 2672
[2022-02-09 02:19:50,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:50,233 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:50,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states.
[2022-02-09 02:19:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1344.
[2022-02-09 02:19:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1343 states have (on average 3.9017125837676843) internal successors, (5240), 1343 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 5240 transitions.
[2022-02-09 02:19:50,261 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 5240 transitions. Word has length 25
[2022-02-09 02:19:50,261 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:50,261 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 5240 transitions.
[2022-02-09 02:19:50,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 5240 transitions.
[2022-02-09 02:19:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:50,264 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:50,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:50,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469
[2022-02-09 02:19:50,264 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 567937495, now seen corresponding path program 466 times
[2022-02-09 02:19:50,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:50,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153915226]
[2022-02-09 02:19:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:50,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:50,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:50,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153915226]
[2022-02-09 02:19:50,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153915226] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:50,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:50,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:50,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668230069]
[2022-02-09 02:19:50,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:50,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:50,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:50,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:50,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:50,384 INFO L87 Difference]: Start difference. First operand 1344 states and 5240 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:50,488 INFO L93 Difference]: Finished difference Result 2894 states and 10604 transitions.
[2022-02-09 02:19:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:50,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:50,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:50,495 INFO L225 Difference]: With dead ends: 2894
[2022-02-09 02:19:50,495 INFO L226 Difference]: Without dead ends: 2626
[2022-02-09 02:19:50,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:50,495 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:50,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 150 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states.
[2022-02-09 02:19:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1298.
[2022-02-09 02:19:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.902081727062452) internal successors, (5061), 1297 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5061 transitions.
[2022-02-09 02:19:50,520 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5061 transitions. Word has length 25
[2022-02-09 02:19:50,520 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:50,520 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5061 transitions.
[2022-02-09 02:19:50,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5061 transitions.
[2022-02-09 02:19:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:50,522 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:50,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:50,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470
[2022-02-09 02:19:50,522 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1469395253, now seen corresponding path program 467 times
[2022-02-09 02:19:50,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:50,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230124328]
[2022-02-09 02:19:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:50,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:50,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:50,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230124328]
[2022-02-09 02:19:50,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230124328] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:50,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:50,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:50,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297823830]
[2022-02-09 02:19:50,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:50,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:50,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:50,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:50,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:50,644 INFO L87 Difference]: Start difference. First operand 1298 states and 5061 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:50,752 INFO L93 Difference]: Finished difference Result 2849 states and 10462 transitions.
[2022-02-09 02:19:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:50,758 INFO L225 Difference]: With dead ends: 2849
[2022-02-09 02:19:50,758 INFO L226 Difference]: Without dead ends: 2666
[2022-02-09 02:19:50,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:50,758 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 115 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:50,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states.
[2022-02-09 02:19:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 1342.
[2022-02-09 02:19:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.8873974645786724) internal successors, (5213), 1341 states have internal predecessors, (5213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5213 transitions.
[2022-02-09 02:19:50,783 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5213 transitions. Word has length 25
[2022-02-09 02:19:50,783 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:50,783 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5213 transitions.
[2022-02-09 02:19:50,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5213 transitions.
[2022-02-09 02:19:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:50,785 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:50,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:50,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471
[2022-02-09 02:19:50,785 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:50,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:50,786 INFO L85 PathProgramCache]: Analyzing trace with hash 399876247, now seen corresponding path program 468 times
[2022-02-09 02:19:50,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:50,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293683114]
[2022-02-09 02:19:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:50,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:50,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:50,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293683114]
[2022-02-09 02:19:50,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293683114] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:50,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:50,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:50,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166288678]
[2022-02-09 02:19:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:50,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:50,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:50,907 INFO L87 Difference]: Start difference. First operand 1342 states and 5213 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:51,006 INFO L93 Difference]: Finished difference Result 2888 states and 10565 transitions.
[2022-02-09 02:19:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:51,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:51,013 INFO L225 Difference]: With dead ends: 2888
[2022-02-09 02:19:51,013 INFO L226 Difference]: Without dead ends: 2600
[2022-02-09 02:19:51,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:51,013 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:51,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 125 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states.
[2022-02-09 02:19:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1276.
[2022-02-09 02:19:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9105882352941177) internal successors, (4986), 1275 states have internal predecessors, (4986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4986 transitions.
[2022-02-09 02:19:51,039 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4986 transitions. Word has length 25
[2022-02-09 02:19:51,039 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:51,039 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4986 transitions.
[2022-02-09 02:19:51,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4986 transitions.
[2022-02-09 02:19:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:51,041 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:51,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:51,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472
[2022-02-09 02:19:51,041 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:51,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1537186229, now seen corresponding path program 469 times
[2022-02-09 02:19:51,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:51,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872746193]
[2022-02-09 02:19:51,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:51,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:51,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:51,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:51,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872746193]
[2022-02-09 02:19:51,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872746193] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:51,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:51,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:51,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072949258]
[2022-02-09 02:19:51,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:51,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:51,159 INFO L87 Difference]: Start difference. First operand 1276 states and 4986 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:51,283 INFO L93 Difference]: Finished difference Result 2756 states and 10128 transitions.
[2022-02-09 02:19:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:51,290 INFO L225 Difference]: With dead ends: 2756
[2022-02-09 02:19:51,290 INFO L226 Difference]: Without dead ends: 2569
[2022-02-09 02:19:51,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:51,290 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:51,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states.
[2022-02-09 02:19:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1320.
[2022-02-09 02:19:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 3.907505686125853) internal successors, (5154), 1319 states have internal predecessors, (5154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5154 transitions.
[2022-02-09 02:19:51,314 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5154 transitions. Word has length 25
[2022-02-09 02:19:51,314 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:51,314 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5154 transitions.
[2022-02-09 02:19:51,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5154 transitions.
[2022-02-09 02:19:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:51,316 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:51,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:51,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473
[2022-02-09 02:19:51,317 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1565314635, now seen corresponding path program 470 times
[2022-02-09 02:19:51,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:51,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986096698]
[2022-02-09 02:19:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:51,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:51,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:51,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986096698]
[2022-02-09 02:19:51,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986096698] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:51,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:51,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:51,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84588701]
[2022-02-09 02:19:51,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:51,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:51,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:51,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:51,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:51,431 INFO L87 Difference]: Start difference. First operand 1320 states and 5154 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:51,540 INFO L93 Difference]: Finished difference Result 2744 states and 10064 transitions.
[2022-02-09 02:19:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:51,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:51,547 INFO L225 Difference]: With dead ends: 2744
[2022-02-09 02:19:51,547 INFO L226 Difference]: Without dead ends: 2545
[2022-02-09 02:19:51,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:51,547 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:51,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states.
[2022-02-09 02:19:51,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1296.
[2022-02-09 02:19:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.911969111969112) internal successors, (5066), 1295 states have internal predecessors, (5066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5066 transitions.
[2022-02-09 02:19:51,572 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5066 transitions. Word has length 25
[2022-02-09 02:19:51,572 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:51,572 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5066 transitions.
[2022-02-09 02:19:51,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5066 transitions.
[2022-02-09 02:19:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:51,574 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:51,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:51,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474
[2022-02-09 02:19:51,574 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:51,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash 919662871, now seen corresponding path program 471 times
[2022-02-09 02:19:51,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:51,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452605043]
[2022-02-09 02:19:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:51,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:51,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:51,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452605043]
[2022-02-09 02:19:51,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452605043] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:51,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:51,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:51,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027757195]
[2022-02-09 02:19:51,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:51,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:51,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:51,690 INFO L87 Difference]: Start difference. First operand 1296 states and 5066 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:51,809 INFO L93 Difference]: Finished difference Result 2779 states and 10175 transitions.
[2022-02-09 02:19:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:51,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:51,815 INFO L225 Difference]: With dead ends: 2779
[2022-02-09 02:19:51,815 INFO L226 Difference]: Without dead ends: 2592
[2022-02-09 02:19:51,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:51,815 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:51,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:51,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states.
[2022-02-09 02:19:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 1342.
[2022-02-09 02:19:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.894854586129754) internal successors, (5223), 1341 states have internal predecessors, (5223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5223 transitions.
[2022-02-09 02:19:51,840 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5223 transitions. Word has length 25
[2022-02-09 02:19:51,840 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:51,840 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5223 transitions.
[2022-02-09 02:19:51,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5223 transitions.
[2022-02-09 02:19:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:51,842 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:51,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:51,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475
[2022-02-09 02:19:51,843 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1455124043, now seen corresponding path program 472 times
[2022-02-09 02:19:51,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:51,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433424957]
[2022-02-09 02:19:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:51,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:51,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:51,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433424957]
[2022-02-09 02:19:51,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433424957] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:51,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:51,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:51,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148268032]
[2022-02-09 02:19:51,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:51,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:51,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:51,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:51,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:51,963 INFO L87 Difference]: Start difference. First operand 1342 states and 5223 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:52,067 INFO L93 Difference]: Finished difference Result 2814 states and 10264 transitions.
[2022-02-09 02:19:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:52,074 INFO L225 Difference]: With dead ends: 2814
[2022-02-09 02:19:52,074 INFO L226 Difference]: Without dead ends: 2546
[2022-02-09 02:19:52,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:52,074 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 115 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:52,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states.
[2022-02-09 02:19:52,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1296.
[2022-02-09 02:19:52,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.8965250965250964) internal successors, (5046), 1295 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5046 transitions.
[2022-02-09 02:19:52,098 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5046 transitions. Word has length 25
[2022-02-09 02:19:52,098 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:52,098 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5046 transitions.
[2022-02-09 02:19:52,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5046 transitions.
[2022-02-09 02:19:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:52,100 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:52,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:52,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476
[2022-02-09 02:19:52,101 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:52,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1139574347, now seen corresponding path program 473 times
[2022-02-09 02:19:52,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:52,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470793774]
[2022-02-09 02:19:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:52,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:52,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:52,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470793774]
[2022-02-09 02:19:52,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470793774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:52,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:52,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:52,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926376942]
[2022-02-09 02:19:52,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:52,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:52,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:52,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:52,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:52,219 INFO L87 Difference]: Start difference. First operand 1296 states and 5046 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:52,337 INFO L93 Difference]: Finished difference Result 2749 states and 10052 transitions.
[2022-02-09 02:19:52,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:52,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:52,344 INFO L225 Difference]: With dead ends: 2749
[2022-02-09 02:19:52,344 INFO L226 Difference]: Without dead ends: 2574
[2022-02-09 02:19:52,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:52,344 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:52,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 149 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:52,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states.
[2022-02-09 02:19:52,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1336.
[2022-02-09 02:19:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.884644194756554) internal successors, (5186), 1335 states have internal predecessors, (5186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5186 transitions.
[2022-02-09 02:19:52,371 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5186 transitions. Word has length 25
[2022-02-09 02:19:52,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:52,371 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5186 transitions.
[2022-02-09 02:19:52,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5186 transitions.
[2022-02-09 02:19:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:52,374 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:52,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:52,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477
[2022-02-09 02:19:52,374 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash -921222761, now seen corresponding path program 474 times
[2022-02-09 02:19:52,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:52,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599981639]
[2022-02-09 02:19:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:52,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:52,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:52,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599981639]
[2022-02-09 02:19:52,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599981639] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:52,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:52,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:52,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066784223]
[2022-02-09 02:19:52,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:52,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:52,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:52,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:52,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:52,494 INFO L87 Difference]: Start difference. First operand 1336 states and 5186 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:52,596 INFO L93 Difference]: Finished difference Result 2701 states and 9852 transitions.
[2022-02-09 02:19:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:52,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:52,602 INFO L225 Difference]: With dead ends: 2701
[2022-02-09 02:19:52,602 INFO L226 Difference]: Without dead ends: 2419
[2022-02-09 02:19:52,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:52,603 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 112 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:52,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 133 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:52,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states.
[2022-02-09 02:19:52,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 1276.
[2022-02-09 02:19:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9027450980392158) internal successors, (4976), 1275 states have internal predecessors, (4976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4976 transitions.
[2022-02-09 02:19:52,627 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4976 transitions. Word has length 25
[2022-02-09 02:19:52,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:52,627 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4976 transitions.
[2022-02-09 02:19:52,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4976 transitions.
[2022-02-09 02:19:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:52,629 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:52,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:52,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478
[2022-02-09 02:19:52,629 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:52,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1785384557, now seen corresponding path program 475 times
[2022-02-09 02:19:52,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:52,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32549279]
[2022-02-09 02:19:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:52,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:52,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:52,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32549279]
[2022-02-09 02:19:52,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32549279] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:52,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:52,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:52,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083198035]
[2022-02-09 02:19:52,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:52,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:52,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:52,751 INFO L87 Difference]: Start difference. First operand 1276 states and 4976 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:52,862 INFO L93 Difference]: Finished difference Result 2678 states and 9803 transitions.
[2022-02-09 02:19:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:52,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:52,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:52,869 INFO L225 Difference]: With dead ends: 2678
[2022-02-09 02:19:52,869 INFO L226 Difference]: Without dead ends: 2495
[2022-02-09 02:19:52,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:52,869 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 118 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:52,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 130 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:52,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states.
[2022-02-09 02:19:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1320.
[2022-02-09 02:19:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 3.899924184988628) internal successors, (5144), 1319 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5144 transitions.
[2022-02-09 02:19:52,894 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5144 transitions. Word has length 25
[2022-02-09 02:19:52,894 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:52,895 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5144 transitions.
[2022-02-09 02:19:52,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5144 transitions.
[2022-02-09 02:19:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:52,897 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:52,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:52,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479
[2022-02-09 02:19:52,897 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash -704321931, now seen corresponding path program 476 times
[2022-02-09 02:19:52,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:52,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589607071]
[2022-02-09 02:19:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:52,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:53,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:53,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589607071]
[2022-02-09 02:19:53,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589607071] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:53,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:53,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:53,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228529735]
[2022-02-09 02:19:53,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:53,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:53,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:53,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:53,019 INFO L87 Difference]: Start difference. First operand 1320 states and 5144 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:53,137 INFO L93 Difference]: Finished difference Result 2670 states and 9751 transitions.
[2022-02-09 02:19:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:53,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:53,143 INFO L225 Difference]: With dead ends: 2670
[2022-02-09 02:19:53,143 INFO L226 Difference]: Without dead ends: 2471
[2022-02-09 02:19:53,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:53,143 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 104 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:53,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 152 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states.
[2022-02-09 02:19:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1296.
[2022-02-09 02:19:53,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.904247104247104) internal successors, (5056), 1295 states have internal predecessors, (5056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5056 transitions.
[2022-02-09 02:19:53,168 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5056 transitions. Word has length 25
[2022-02-09 02:19:53,169 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:53,169 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5056 transitions.
[2022-02-09 02:19:53,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5056 transitions.
[2022-02-09 02:19:53,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:53,171 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:53,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:53,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480
[2022-02-09 02:19:53,171 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1892059381, now seen corresponding path program 477 times
[2022-02-09 02:19:53,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:53,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887996837]
[2022-02-09 02:19:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:53,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:53,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:53,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887996837]
[2022-02-09 02:19:53,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887996837] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:53,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:53,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:53,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764462268]
[2022-02-09 02:19:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:53,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:53,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:53,294 INFO L87 Difference]: Start difference. First operand 1296 states and 5056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:53,407 INFO L93 Difference]: Finished difference Result 2606 states and 9515 transitions.
[2022-02-09 02:19:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:53,413 INFO L225 Difference]: With dead ends: 2606
[2022-02-09 02:19:53,413 INFO L226 Difference]: Without dead ends: 2423
[2022-02-09 02:19:53,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:53,413 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 114 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:53,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 138 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:53,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states.
[2022-02-09 02:19:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 1340.
[2022-02-09 02:19:53,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.8894697535474236) internal successors, (5208), 1339 states have internal predecessors, (5208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 5208 transitions.
[2022-02-09 02:19:53,440 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 5208 transitions. Word has length 25
[2022-02-09 02:19:53,440 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:53,440 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 5208 transitions.
[2022-02-09 02:19:53,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 5208 transitions.
[2022-02-09 02:19:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:53,442 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:53,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:53,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481
[2022-02-09 02:19:53,442 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:53,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:53,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1633136395, now seen corresponding path program 478 times
[2022-02-09 02:19:53,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:53,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47380026]
[2022-02-09 02:19:53,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:53,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:53,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:53,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47380026]
[2022-02-09 02:19:53,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47380026] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:53,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:53,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:53,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039009760]
[2022-02-09 02:19:53,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:53,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:53,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:53,573 INFO L87 Difference]: Start difference. First operand 1340 states and 5208 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:53,671 INFO L93 Difference]: Finished difference Result 2645 states and 9618 transitions.
[2022-02-09 02:19:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:53,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:53,676 INFO L225 Difference]: With dead ends: 2645
[2022-02-09 02:19:53,676 INFO L226 Difference]: Without dead ends: 2379
[2022-02-09 02:19:53,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:53,676 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:53,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 133 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:53,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states.
[2022-02-09 02:19:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1296.
[2022-02-09 02:19:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.8888030888030887) internal successors, (5036), 1295 states have internal predecessors, (5036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5036 transitions.
[2022-02-09 02:19:53,698 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5036 transitions. Word has length 25
[2022-02-09 02:19:53,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:53,698 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5036 transitions.
[2022-02-09 02:19:53,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5036 transitions.
[2022-02-09 02:19:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:53,700 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:53,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:53,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482
[2022-02-09 02:19:53,700 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:53,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2014902953, now seen corresponding path program 479 times
[2022-02-09 02:19:53,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:53,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803975575]
[2022-02-09 02:19:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:53,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:53,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:53,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803975575]
[2022-02-09 02:19:53,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803975575] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:53,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:53,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:53,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018845818]
[2022-02-09 02:19:53,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:53,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:53,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:53,823 INFO L87 Difference]: Start difference. First operand 1296 states and 5036 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:53,936 INFO L93 Difference]: Finished difference Result 2546 states and 9259 transitions.
[2022-02-09 02:19:53,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:53,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:53,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:53,942 INFO L225 Difference]: With dead ends: 2546
[2022-02-09 02:19:53,942 INFO L226 Difference]: Without dead ends: 2371
[2022-02-09 02:19:53,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:53,942 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 99 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:53,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 145 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:53,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states.
[2022-02-09 02:19:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1336.
[2022-02-09 02:19:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.8771535580524343) internal successors, (5176), 1335 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5176 transitions.
[2022-02-09 02:19:53,967 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5176 transitions. Word has length 25
[2022-02-09 02:19:53,968 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:53,968 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5176 transitions.
[2022-02-09 02:19:53,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5176 transitions.
[2022-02-09 02:19:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:53,970 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:53,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:53,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483
[2022-02-09 02:19:53,970 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash 459028917, now seen corresponding path program 480 times
[2022-02-09 02:19:53,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:53,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522535641]
[2022-02-09 02:19:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:53,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:54,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:54,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522535641]
[2022-02-09 02:19:54,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522535641] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:54,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:54,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:54,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569028723]
[2022-02-09 02:19:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:54,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:54,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:54,093 INFO L87 Difference]: Start difference. First operand 1336 states and 5176 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:54,198 INFO L93 Difference]: Finished difference Result 2498 states and 9059 transitions.
[2022-02-09 02:19:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:54,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:54,203 INFO L225 Difference]: With dead ends: 2498
[2022-02-09 02:19:54,204 INFO L226 Difference]: Without dead ends: 2202
[2022-02-09 02:19:54,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:54,204 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:54,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 142 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states.
[2022-02-09 02:19:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1262.
[2022-02-09 02:19:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.9183187946074542) internal successors, (4941), 1261 states have internal predecessors, (4941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4941 transitions.
[2022-02-09 02:19:54,227 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4941 transitions. Word has length 25
[2022-02-09 02:19:54,227 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:54,227 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4941 transitions.
[2022-02-09 02:19:54,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4941 transitions.
[2022-02-09 02:19:54,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:54,229 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:54,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:54,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484
[2022-02-09 02:19:54,229 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:54,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1249862383, now seen corresponding path program 481 times
[2022-02-09 02:19:54,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:54,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357007298]
[2022-02-09 02:19:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:54,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:54,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:54,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357007298]
[2022-02-09 02:19:54,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357007298] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:54,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:54,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:54,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210723901]
[2022-02-09 02:19:54,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:54,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:54,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:54,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:54,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:54,348 INFO L87 Difference]: Start difference. First operand 1262 states and 4941 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:54,442 INFO L93 Difference]: Finished difference Result 2545 states and 9271 transitions.
[2022-02-09 02:19:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:54,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:54,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:54,447 INFO L225 Difference]: With dead ends: 2545
[2022-02-09 02:19:54,447 INFO L226 Difference]: Without dead ends: 2386
[2022-02-09 02:19:54,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:54,447 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:54,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 148 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states.
[2022-02-09 02:19:54,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1286.
[2022-02-09 02:19:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9105058365758754) internal successors, (5025), 1285 states have internal predecessors, (5025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5025 transitions.
[2022-02-09 02:19:54,469 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5025 transitions. Word has length 25
[2022-02-09 02:19:54,470 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:54,470 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5025 transitions.
[2022-02-09 02:19:54,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5025 transitions.
[2022-02-09 02:19:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:54,472 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:54,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:54,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485
[2022-02-09 02:19:54,472 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:54,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash -340072367, now seen corresponding path program 482 times
[2022-02-09 02:19:54,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:54,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845893002]
[2022-02-09 02:19:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:54,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:54,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:54,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845893002]
[2022-02-09 02:19:54,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845893002] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:54,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:54,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:54,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546131589]
[2022-02-09 02:19:54,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:54,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:54,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:54,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:54,590 INFO L87 Difference]: Start difference. First operand 1286 states and 5025 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:54,691 INFO L93 Difference]: Finished difference Result 2575 states and 9364 transitions.
[2022-02-09 02:19:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:54,696 INFO L225 Difference]: With dead ends: 2575
[2022-02-09 02:19:54,696 INFO L226 Difference]: Without dead ends: 2370
[2022-02-09 02:19:54,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:54,696 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 143 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:54,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 131 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states.
[2022-02-09 02:19:54,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1270.
[2022-02-09 02:19:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9156816390858946) internal successors, (4969), 1269 states have internal predecessors, (4969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions.
[2022-02-09 02:19:54,718 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25
[2022-02-09 02:19:54,718 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:54,718 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions.
[2022-02-09 02:19:54,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions.
[2022-02-09 02:19:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:54,720 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:54,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:54,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486
[2022-02-09 02:19:54,720 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1964042287, now seen corresponding path program 483 times
[2022-02-09 02:19:54,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:54,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032536996]
[2022-02-09 02:19:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:54,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:54,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:54,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032536996]
[2022-02-09 02:19:54,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032536996] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:54,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:54,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:54,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617256071]
[2022-02-09 02:19:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:54,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:54,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:54,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:54,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:54,841 INFO L87 Difference]: Start difference. First operand 1270 states and 4969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:54,932 INFO L93 Difference]: Finished difference Result 2543 states and 9258 transitions.
[2022-02-09 02:19:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:54,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:54,937 INFO L225 Difference]: With dead ends: 2543
[2022-02-09 02:19:54,937 INFO L226 Difference]: Without dead ends: 2384
[2022-02-09 02:19:54,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:54,937 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 119 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:54,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 145 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states.
[2022-02-09 02:19:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 1286.
[2022-02-09 02:19:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9042801556420232) internal successors, (5017), 1285 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions.
[2022-02-09 02:19:54,959 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25
[2022-02-09 02:19:54,959 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:54,959 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions.
[2022-02-09 02:19:54,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions.
[2022-02-09 02:19:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:54,961 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:54,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:54,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487
[2022-02-09 02:19:54,961 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -955744303, now seen corresponding path program 484 times
[2022-02-09 02:19:54,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:54,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274775594]
[2022-02-09 02:19:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:54,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:55,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:55,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274775594]
[2022-02-09 02:19:55,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274775594] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:55,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:55,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:55,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133984539]
[2022-02-09 02:19:55,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:55,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:55,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:55,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:55,083 INFO L87 Difference]: Start difference. First operand 1286 states and 5017 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:55,194 INFO L93 Difference]: Finished difference Result 2571 states and 9346 transitions.
[2022-02-09 02:19:55,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:55,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:55,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:55,199 INFO L225 Difference]: With dead ends: 2571
[2022-02-09 02:19:55,200 INFO L226 Difference]: Without dead ends: 2368
[2022-02-09 02:19:55,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:55,200 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:55,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 156 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:55,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states.
[2022-02-09 02:19:55,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1270.
[2022-02-09 02:19:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions.
[2022-02-09 02:19:55,222 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25
[2022-02-09 02:19:55,222 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:55,222 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions.
[2022-02-09 02:19:55,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions.
[2022-02-09 02:19:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:55,224 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:55,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:55,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488
[2022-02-09 02:19:55,224 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:55,224 INFO L85 PathProgramCache]: Analyzing trace with hash -546880333, now seen corresponding path program 485 times
[2022-02-09 02:19:55,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:55,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369335370]
[2022-02-09 02:19:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:55,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:55,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:55,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369335370]
[2022-02-09 02:19:55,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369335370] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:55,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:55,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:55,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520321534]
[2022-02-09 02:19:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:55,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:55,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:55,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:55,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:55,345 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:55,453 INFO L93 Difference]: Finished difference Result 2617 states and 9527 transitions.
[2022-02-09 02:19:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:55,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:55,459 INFO L225 Difference]: With dead ends: 2617
[2022-02-09 02:19:55,459 INFO L226 Difference]: Without dead ends: 2428
[2022-02-09 02:19:55,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:55,460 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:55,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:55,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states.
[2022-02-09 02:19:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1300.
[2022-02-09 02:19:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1299 states have (on average 3.890685142417244) internal successors, (5054), 1299 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 5054 transitions.
[2022-02-09 02:19:55,484 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 5054 transitions. Word has length 25
[2022-02-09 02:19:55,484 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:55,484 INFO L470 AbstractCegarLoop]: Abstraction has 1300 states and 5054 transitions.
[2022-02-09 02:19:55,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 5054 transitions.
[2022-02-09 02:19:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:55,486 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:55,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:55,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489
[2022-02-09 02:19:55,486 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:55,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1704749969, now seen corresponding path program 486 times
[2022-02-09 02:19:55,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:55,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723405045]
[2022-02-09 02:19:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:55,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:55,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:55,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723405045]
[2022-02-09 02:19:55,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723405045] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:55,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:55,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:55,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379546488]
[2022-02-09 02:19:55,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:55,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:55,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:55,607 INFO L87 Difference]: Start difference. First operand 1300 states and 5054 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:55,711 INFO L93 Difference]: Finished difference Result 2615 states and 9492 transitions.
[2022-02-09 02:19:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:55,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:55,717 INFO L225 Difference]: With dead ends: 2615
[2022-02-09 02:19:55,717 INFO L226 Difference]: Without dead ends: 2390
[2022-02-09 02:19:55,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:55,717 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:55,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 144 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states.
[2022-02-09 02:19:55,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1262.
[2022-02-09 02:19:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.915146708961142) internal successors, (4937), 1261 states have internal predecessors, (4937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4937 transitions.
[2022-02-09 02:19:55,757 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4937 transitions. Word has length 25
[2022-02-09 02:19:55,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:55,757 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4937 transitions.
[2022-02-09 02:19:55,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4937 transitions.
[2022-02-09 02:19:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:55,759 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:55,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:55,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490
[2022-02-09 02:19:55,759 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:55,760 INFO L85 PathProgramCache]: Analyzing trace with hash 768960337, now seen corresponding path program 487 times
[2022-02-09 02:19:55,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:55,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076205465]
[2022-02-09 02:19:55,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:55,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:55,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:55,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076205465]
[2022-02-09 02:19:55,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076205465] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:55,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:55,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:55,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957640909]
[2022-02-09 02:19:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:55,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:55,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:55,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:55,873 INFO L87 Difference]: Start difference. First operand 1262 states and 4937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:55,965 INFO L93 Difference]: Finished difference Result 2539 states and 9248 transitions.
[2022-02-09 02:19:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:55,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:55,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:55,971 INFO L225 Difference]: With dead ends: 2539
[2022-02-09 02:19:55,971 INFO L226 Difference]: Without dead ends: 2380
[2022-02-09 02:19:55,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:55,971 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:55,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 147 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states.
[2022-02-09 02:19:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1286.
[2022-02-09 02:19:55,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9073929961089493) internal successors, (5021), 1285 states have internal predecessors, (5021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5021 transitions.
[2022-02-09 02:19:55,994 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5021 transitions. Word has length 25
[2022-02-09 02:19:55,994 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:55,994 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5021 transitions.
[2022-02-09 02:19:55,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5021 transitions.
[2022-02-09 02:19:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:55,996 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:55,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:55,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491
[2022-02-09 02:19:55,996 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:55,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash -820974413, now seen corresponding path program 488 times
[2022-02-09 02:19:55,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:55,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954728375]
[2022-02-09 02:19:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:55,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:56,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:56,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954728375]
[2022-02-09 02:19:56,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954728375] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:56,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:56,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:56,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737305906]
[2022-02-09 02:19:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:56,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:56,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:56,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:56,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:56,113 INFO L87 Difference]: Start difference. First operand 1286 states and 5021 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:56,225 INFO L93 Difference]: Finished difference Result 2569 states and 9341 transitions.
[2022-02-09 02:19:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:56,231 INFO L225 Difference]: With dead ends: 2569
[2022-02-09 02:19:56,231 INFO L226 Difference]: Without dead ends: 2364
[2022-02-09 02:19:56,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:56,231 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:56,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states.
[2022-02-09 02:19:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1270.
[2022-02-09 02:19:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9125295508274234) internal successors, (4965), 1269 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions.
[2022-02-09 02:19:56,257 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25
[2022-02-09 02:19:56,257 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:56,257 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions.
[2022-02-09 02:19:56,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions.
[2022-02-09 02:19:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:56,259 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:56,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:56,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492
[2022-02-09 02:19:56,260 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash -919285935, now seen corresponding path program 489 times
[2022-02-09 02:19:56,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:56,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615909256]
[2022-02-09 02:19:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:56,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:56,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:56,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615909256]
[2022-02-09 02:19:56,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615909256] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:56,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:56,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:56,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162538997]
[2022-02-09 02:19:56,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:56,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:56,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:56,381 INFO L87 Difference]: Start difference. First operand 1270 states and 4965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:56,488 INFO L93 Difference]: Finished difference Result 2533 states and 9223 transitions.
[2022-02-09 02:19:56,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:56,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:56,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:56,494 INFO L225 Difference]: With dead ends: 2533
[2022-02-09 02:19:56,494 INFO L226 Difference]: Without dead ends: 2374
[2022-02-09 02:19:56,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:56,494 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:56,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 177 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states.
[2022-02-09 02:19:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1286.
[2022-02-09 02:19:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.901167315175097) internal successors, (5013), 1285 states have internal predecessors, (5013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5013 transitions.
[2022-02-09 02:19:56,515 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5013 transitions. Word has length 25
[2022-02-09 02:19:56,516 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:56,516 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5013 transitions.
[2022-02-09 02:19:56,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5013 transitions.
[2022-02-09 02:19:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:56,517 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:56,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:56,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493
[2022-02-09 02:19:56,518 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:56,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:56,518 INFO L85 PathProgramCache]: Analyzing trace with hash 761210705, now seen corresponding path program 490 times
[2022-02-09 02:19:56,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:56,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398631155]
[2022-02-09 02:19:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:56,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:56,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:56,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398631155]
[2022-02-09 02:19:56,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398631155] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:56,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:56,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:56,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016332764]
[2022-02-09 02:19:56,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:56,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:56,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:56,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:56,634 INFO L87 Difference]: Start difference. First operand 1286 states and 5013 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:56,742 INFO L93 Difference]: Finished difference Result 2557 states and 9299 transitions.
[2022-02-09 02:19:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:56,747 INFO L225 Difference]: With dead ends: 2557
[2022-02-09 02:19:56,747 INFO L226 Difference]: Without dead ends: 2358
[2022-02-09 02:19:56,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:56,747 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:56,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 146 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states.
[2022-02-09 02:19:56,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1270.
[2022-02-09 02:19:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.906225374310481) internal successors, (4957), 1269 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4957 transitions.
[2022-02-09 02:19:56,769 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4957 transitions. Word has length 25
[2022-02-09 02:19:56,769 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:56,769 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4957 transitions.
[2022-02-09 02:19:56,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4957 transitions.
[2022-02-09 02:19:56,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:56,771 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:56,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:56,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494
[2022-02-09 02:19:56,771 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:56,772 INFO L85 PathProgramCache]: Analyzing trace with hash 497876019, now seen corresponding path program 491 times
[2022-02-09 02:19:56,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:56,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119371119]
[2022-02-09 02:19:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:56,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:56,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:56,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119371119]
[2022-02-09 02:19:56,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119371119] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:56,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:56,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:56,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568708577]
[2022-02-09 02:19:56,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:56,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:56,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:56,887 INFO L87 Difference]: Start difference. First operand 1270 states and 4957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:56,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:56,995 INFO L93 Difference]: Finished difference Result 2605 states and 9485 transitions.
[2022-02-09 02:19:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:56,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:57,000 INFO L225 Difference]: With dead ends: 2605
[2022-02-09 02:19:57,000 INFO L226 Difference]: Without dead ends: 2416
[2022-02-09 02:19:57,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:57,000 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:57,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states.
[2022-02-09 02:19:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1298.
[2022-02-09 02:19:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.889745566692367) internal successors, (5045), 1297 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5045 transitions.
[2022-02-09 02:19:57,024 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5045 transitions. Word has length 25
[2022-02-09 02:19:57,024 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:57,024 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5045 transitions.
[2022-02-09 02:19:57,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5045 transitions.
[2022-02-09 02:19:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:57,026 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:57,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:57,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495
[2022-02-09 02:19:57,026 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash -894268527, now seen corresponding path program 492 times
[2022-02-09 02:19:57,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:57,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9522430]
[2022-02-09 02:19:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:57,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:57,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:57,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9522430]
[2022-02-09 02:19:57,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9522430] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:57,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:57,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:57,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206412436]
[2022-02-09 02:19:57,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:57,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:57,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:57,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:57,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:57,144 INFO L87 Difference]: Start difference. First operand 1298 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:57,260 INFO L93 Difference]: Finished difference Result 2599 states and 9440 transitions.
[2022-02-09 02:19:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:57,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:57,266 INFO L225 Difference]: With dead ends: 2599
[2022-02-09 02:19:57,266 INFO L226 Difference]: Without dead ends: 2380
[2022-02-09 02:19:57,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:57,266 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:57,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 167 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states.
[2022-02-09 02:19:57,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1262.
[2022-02-09 02:19:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.9119746233148294) internal successors, (4933), 1261 states have internal predecessors, (4933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4933 transitions.
[2022-02-09 02:19:57,293 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4933 transitions. Word has length 25
[2022-02-09 02:19:57,294 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:57,294 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4933 transitions.
[2022-02-09 02:19:57,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4933 transitions.
[2022-02-09 02:19:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:57,296 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:57,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:57,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496
[2022-02-09 02:19:57,296 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1156965299, now seen corresponding path program 493 times
[2022-02-09 02:19:57,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:57,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110122333]
[2022-02-09 02:19:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:57,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:57,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:57,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110122333]
[2022-02-09 02:19:57,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110122333] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:57,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:57,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:57,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931982361]
[2022-02-09 02:19:57,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:57,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:57,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:57,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:57,418 INFO L87 Difference]: Start difference. First operand 1262 states and 4933 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:57,519 INFO L93 Difference]: Finished difference Result 2535 states and 9234 transitions.
[2022-02-09 02:19:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:57,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:57,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:57,524 INFO L225 Difference]: With dead ends: 2535
[2022-02-09 02:19:57,524 INFO L226 Difference]: Without dead ends: 2376
[2022-02-09 02:19:57,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:57,525 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:57,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:57,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states.
[2022-02-09 02:19:57,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1286.
[2022-02-09 02:19:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9042801556420232) internal successors, (5017), 1285 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions.
[2022-02-09 02:19:57,547 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25
[2022-02-09 02:19:57,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:57,547 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions.
[2022-02-09 02:19:57,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions.
[2022-02-09 02:19:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:57,549 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:57,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:57,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497
[2022-02-09 02:19:57,549 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2129704013, now seen corresponding path program 494 times
[2022-02-09 02:19:57,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:57,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611969302]
[2022-02-09 02:19:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:57,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:57,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:57,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611969302]
[2022-02-09 02:19:57,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611969302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:57,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:57,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:57,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031330009]
[2022-02-09 02:19:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:57,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:57,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:57,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:57,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:57,670 INFO L87 Difference]: Start difference. First operand 1286 states and 5017 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:57,784 INFO L93 Difference]: Finished difference Result 2563 states and 9322 transitions.
[2022-02-09 02:19:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:57,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:57,789 INFO L225 Difference]: With dead ends: 2563
[2022-02-09 02:19:57,789 INFO L226 Difference]: Without dead ends: 2360
[2022-02-09 02:19:57,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:57,790 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:57,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 168 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states.
[2022-02-09 02:19:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1270.
[2022-02-09 02:19:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions.
[2022-02-09 02:19:57,812 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25
[2022-02-09 02:19:57,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:57,812 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions.
[2022-02-09 02:19:57,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions.
[2022-02-09 02:19:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:57,814 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:57,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:57,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498
[2022-02-09 02:19:57,814 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:57,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash 310168337, now seen corresponding path program 495 times
[2022-02-09 02:19:57,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:57,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682469488]
[2022-02-09 02:19:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:57,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:57,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:57,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682469488]
[2022-02-09 02:19:57,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682469488] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:57,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:57,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:57,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678626977]
[2022-02-09 02:19:57,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:57,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:57,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:57,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:57,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:57,934 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:58,034 INFO L93 Difference]: Finished difference Result 2531 states and 9214 transitions.
[2022-02-09 02:19:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:58,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:58,040 INFO L225 Difference]: With dead ends: 2531
[2022-02-09 02:19:58,040 INFO L226 Difference]: Without dead ends: 2372
[2022-02-09 02:19:58,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:58,040 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:58,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 160 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states.
[2022-02-09 02:19:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1286.
[2022-02-09 02:19:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.898054474708171) internal successors, (5009), 1285 states have internal predecessors, (5009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5009 transitions.
[2022-02-09 02:19:58,077 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5009 transitions. Word has length 25
[2022-02-09 02:19:58,077 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:58,077 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5009 transitions.
[2022-02-09 02:19:58,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5009 transitions.
[2022-02-09 02:19:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:58,079 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:58,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:58,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499
[2022-02-09 02:19:58,079 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash 280308659, now seen corresponding path program 496 times
[2022-02-09 02:19:58,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:58,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018707973]
[2022-02-09 02:19:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:58,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:58,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:58,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018707973]
[2022-02-09 02:19:58,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018707973] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:58,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:58,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:58,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950792739]
[2022-02-09 02:19:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:58,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:58,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:58,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:58,196 INFO L87 Difference]: Start difference. First operand 1286 states and 5009 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:58,321 INFO L93 Difference]: Finished difference Result 2555 states and 9290 transitions.
[2022-02-09 02:19:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:58,326 INFO L225 Difference]: With dead ends: 2555
[2022-02-09 02:19:58,326 INFO L226 Difference]: Without dead ends: 2356
[2022-02-09 02:19:58,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:58,327 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 92 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:58,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 184 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states.
[2022-02-09 02:19:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1270.
[2022-02-09 02:19:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9030732860520096) internal successors, (4953), 1269 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4953 transitions.
[2022-02-09 02:19:58,353 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4953 transitions. Word has length 25
[2022-02-09 02:19:58,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:58,353 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4953 transitions.
[2022-02-09 02:19:58,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4953 transitions.
[2022-02-09 02:19:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:58,355 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:58,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:58,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500
[2022-02-09 02:19:58,355 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2080136269, now seen corresponding path program 497 times
[2022-02-09 02:19:58,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:58,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548262065]
[2022-02-09 02:19:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:58,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:58,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:58,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548262065]
[2022-02-09 02:19:58,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548262065] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:58,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:58,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:58,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106312190]
[2022-02-09 02:19:58,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:58,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:58,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:58,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:58,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:58,471 INFO L87 Difference]: Start difference. First operand 1270 states and 4953 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:58,578 INFO L93 Difference]: Finished difference Result 2599 states and 9466 transitions.
[2022-02-09 02:19:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:58,584 INFO L225 Difference]: With dead ends: 2599
[2022-02-09 02:19:58,584 INFO L226 Difference]: Without dead ends: 2412
[2022-02-09 02:19:58,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:58,584 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:58,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 144 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states.
[2022-02-09 02:19:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1298.
[2022-02-09 02:19:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.8866615265998457) internal successors, (5041), 1297 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5041 transitions.
[2022-02-09 02:19:58,609 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5041 transitions. Word has length 25
[2022-02-09 02:19:58,609 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:58,609 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5041 transitions.
[2022-02-09 02:19:58,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5041 transitions.
[2022-02-09 02:19:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:58,611 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:58,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:58,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501
[2022-02-09 02:19:58,612 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:58,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:58,612 INFO L85 PathProgramCache]: Analyzing trace with hash 171494033, now seen corresponding path program 498 times
[2022-02-09 02:19:58,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:58,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820355031]
[2022-02-09 02:19:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:58,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:58,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:58,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820355031]
[2022-02-09 02:19:58,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820355031] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:58,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:58,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:58,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334952381]
[2022-02-09 02:19:58,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:58,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:58,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:58,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:58,729 INFO L87 Difference]: Start difference. First operand 1298 states and 5041 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:58,836 INFO L93 Difference]: Finished difference Result 2595 states and 9426 transitions.
[2022-02-09 02:19:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:58,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:58,842 INFO L225 Difference]: With dead ends: 2595
[2022-02-09 02:19:58,842 INFO L226 Difference]: Without dead ends: 2376
[2022-02-09 02:19:58,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:58,842 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:58,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states.
[2022-02-09 02:19:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1262.
[2022-02-09 02:19:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.908802537668517) internal successors, (4929), 1261 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4929 transitions.
[2022-02-09 02:19:58,867 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4929 transitions. Word has length 25
[2022-02-09 02:19:58,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:58,867 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4929 transitions.
[2022-02-09 02:19:58,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4929 transitions.
[2022-02-09 02:19:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:58,869 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:58,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:58,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502
[2022-02-09 02:19:58,869 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1881069589, now seen corresponding path program 499 times
[2022-02-09 02:19:58,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:58,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055354357]
[2022-02-09 02:19:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:58,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:58,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:58,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055354357]
[2022-02-09 02:19:58,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055354357] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:58,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:58,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:58,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094982451]
[2022-02-09 02:19:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:58,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:58,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:58,987 INFO L87 Difference]: Start difference. First operand 1262 states and 4929 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:59,090 INFO L93 Difference]: Finished difference Result 2671 states and 9756 transitions.
[2022-02-09 02:19:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:59,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:59,097 INFO L225 Difference]: With dead ends: 2671
[2022-02-09 02:19:59,097 INFO L226 Difference]: Without dead ends: 2482
[2022-02-09 02:19:59,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:59,097 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:59,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 143 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:59,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states.
[2022-02-09 02:19:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1306.
[2022-02-09 02:19:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8980842911877396) internal successors, (5087), 1305 states have internal predecessors, (5087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5087 transitions.
[2022-02-09 02:19:59,121 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5087 transitions. Word has length 25
[2022-02-09 02:19:59,121 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:59,122 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5087 transitions.
[2022-02-09 02:19:59,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5087 transitions.
[2022-02-09 02:19:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:59,124 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:59,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:59,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503
[2022-02-09 02:19:59,124 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:59,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash -162267405, now seen corresponding path program 500 times
[2022-02-09 02:19:59,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:59,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810612176]
[2022-02-09 02:19:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:59,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:59,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:59,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810612176]
[2022-02-09 02:19:59,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810612176] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:59,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:59,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:59,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668866618]
[2022-02-09 02:19:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:59,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:59,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:59,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:59,243 INFO L87 Difference]: Start difference. First operand 1306 states and 5087 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:59,346 INFO L93 Difference]: Finished difference Result 2669 states and 9721 transitions.
[2022-02-09 02:19:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:59,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:59,352 INFO L225 Difference]: With dead ends: 2669
[2022-02-09 02:19:59,352 INFO L226 Difference]: Without dead ends: 2452
[2022-02-09 02:19:59,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:59,352 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:59,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 144 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states.
[2022-02-09 02:19:59,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1276.
[2022-02-09 02:19:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9058823529411764) internal successors, (4980), 1275 states have internal predecessors, (4980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4980 transitions.
[2022-02-09 02:19:59,375 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4980 transitions. Word has length 25
[2022-02-09 02:19:59,375 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:59,375 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4980 transitions.
[2022-02-09 02:19:59,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4980 transitions.
[2022-02-09 02:19:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:59,377 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:59,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:59,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504
[2022-02-09 02:19:59,377 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1034272627, now seen corresponding path program 501 times
[2022-02-09 02:19:59,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:59,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052929913]
[2022-02-09 02:19:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:59,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:59,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:59,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052929913]
[2022-02-09 02:19:59,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052929913] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:59,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:59,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:59,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882120968]
[2022-02-09 02:19:59,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:59,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:59,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:59,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:59,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:59,496 INFO L87 Difference]: Start difference. First operand 1276 states and 4980 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:59,605 INFO L93 Difference]: Finished difference Result 2665 states and 9723 transitions.
[2022-02-09 02:19:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:59,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:59,611 INFO L225 Difference]: With dead ends: 2665
[2022-02-09 02:19:59,611 INFO L226 Difference]: Without dead ends: 2476
[2022-02-09 02:19:59,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:59,611 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:59,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states.
[2022-02-09 02:19:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 1304.
[2022-02-09 02:19:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 3.889485801995395) internal successors, (5068), 1303 states have internal predecessors, (5068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5068 transitions.
[2022-02-09 02:19:59,633 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5068 transitions. Word has length 25
[2022-02-09 02:19:59,633 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:59,633 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5068 transitions.
[2022-02-09 02:19:59,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5068 transitions.
[2022-02-09 02:19:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:59,635 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:59,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:59,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505
[2022-02-09 02:19:59,635 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:59,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2068228237, now seen corresponding path program 502 times
[2022-02-09 02:19:59,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:59,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970814706]
[2022-02-09 02:19:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:59,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:19:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:19:59,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:19:59,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970814706]
[2022-02-09 02:19:59,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970814706] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:19:59,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:19:59,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:19:59,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269022382]
[2022-02-09 02:19:59,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:19:59,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:19:59,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:19:59,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:19:59,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:19:59,751 INFO L87 Difference]: Start difference. First operand 1304 states and 5068 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:19:59,855 INFO L93 Difference]: Finished difference Result 2659 states and 9678 transitions.
[2022-02-09 02:19:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:19:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:19:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:19:59,861 INFO L225 Difference]: With dead ends: 2659
[2022-02-09 02:19:59,862 INFO L226 Difference]: Without dead ends: 2448
[2022-02-09 02:19:59,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:19:59,862 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 118 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:19:59,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 142 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:19:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states.
[2022-02-09 02:19:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1276.
[2022-02-09 02:19:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.894901960784314) internal successors, (4966), 1275 states have internal predecessors, (4966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4966 transitions.
[2022-02-09 02:19:59,885 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4966 transitions. Word has length 25
[2022-02-09 02:19:59,885 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:19:59,885 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4966 transitions.
[2022-02-09 02:19:59,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:19:59,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4966 transitions.
[2022-02-09 02:19:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:19:59,887 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:19:59,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:19:59,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506
[2022-02-09 02:19:59,888 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:19:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:19:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2016620241, now seen corresponding path program 503 times
[2022-02-09 02:19:59,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:19:59,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914476524]
[2022-02-09 02:19:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:19:59,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:19:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:00,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:00,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914476524]
[2022-02-09 02:20:00,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914476524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:00,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:00,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:00,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428156525]
[2022-02-09 02:20:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:00,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:00,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:00,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:00,031 INFO L87 Difference]: Start difference. First operand 1276 states and 4966 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:00,161 INFO L93 Difference]: Finished difference Result 2661 states and 9699 transitions.
[2022-02-09 02:20:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:00,169 INFO L225 Difference]: With dead ends: 2661
[2022-02-09 02:20:00,169 INFO L226 Difference]: Without dead ends: 2474
[2022-02-09 02:20:00,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:00,170 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:00,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states.
[2022-02-09 02:20:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1304.
[2022-02-09 02:20:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 3.878741366078281) internal successors, (5054), 1303 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5054 transitions.
[2022-02-09 02:20:00,202 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5054 transitions. Word has length 25
[2022-02-09 02:20:00,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:00,202 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5054 transitions.
[2022-02-09 02:20:00,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5054 transitions.
[2022-02-09 02:20:00,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:00,205 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:00,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:00,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507
[2022-02-09 02:20:00,206 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1197284429, now seen corresponding path program 504 times
[2022-02-09 02:20:00,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:00,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258741062]
[2022-02-09 02:20:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:00,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:00,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:00,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258741062]
[2022-02-09 02:20:00,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258741062] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:00,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:00,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:00,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84872573]
[2022-02-09 02:20:00,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:00,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:00,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:00,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:00,361 INFO L87 Difference]: Start difference. First operand 1304 states and 5054 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:00,495 INFO L93 Difference]: Finished difference Result 2657 states and 9659 transitions.
[2022-02-09 02:20:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:00,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:00,501 INFO L225 Difference]: With dead ends: 2657
[2022-02-09 02:20:00,501 INFO L226 Difference]: Without dead ends: 2428
[2022-02-09 02:20:00,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:00,501 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:00,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 135 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states.
[2022-02-09 02:20:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1258.
[2022-02-09 02:20:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.913285600636436) internal successors, (4919), 1257 states have internal predecessors, (4919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4919 transitions.
[2022-02-09 02:20:00,523 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4919 transitions. Word has length 25
[2022-02-09 02:20:00,523 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:00,523 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4919 transitions.
[2022-02-09 02:20:00,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4919 transitions.
[2022-02-09 02:20:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:00,525 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:00,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:00,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508
[2022-02-09 02:20:00,525 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:00,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1335503151, now seen corresponding path program 505 times
[2022-02-09 02:20:00,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:00,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181300457]
[2022-02-09 02:20:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:00,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:00,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:00,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181300457]
[2022-02-09 02:20:00,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181300457] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:00,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:00,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:00,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834723958]
[2022-02-09 02:20:00,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:00,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:00,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:00,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:00,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:00,642 INFO L87 Difference]: Start difference. First operand 1258 states and 4919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:00,742 INFO L93 Difference]: Finished difference Result 2515 states and 9144 transitions.
[2022-02-09 02:20:00,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:00,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:00,747 INFO L225 Difference]: With dead ends: 2515
[2022-02-09 02:20:00,747 INFO L226 Difference]: Without dead ends: 2356
[2022-02-09 02:20:00,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:00,747 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:00,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 165 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states.
[2022-02-09 02:20:00,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1274.
[2022-02-09 02:20:00,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.9018067556952083) internal successors, (4967), 1273 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4967 transitions.
[2022-02-09 02:20:00,769 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4967 transitions. Word has length 25
[2022-02-09 02:20:00,769 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:00,769 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4967 transitions.
[2022-02-09 02:20:00,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4967 transitions.
[2022-02-09 02:20:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:00,771 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:00,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:00,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509
[2022-02-09 02:20:00,771 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:00,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1369529395, now seen corresponding path program 506 times
[2022-02-09 02:20:00,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:00,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934833110]
[2022-02-09 02:20:00,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:00,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:00,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:00,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934833110]
[2022-02-09 02:20:00,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934833110] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:00,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:00,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:00,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123584867]
[2022-02-09 02:20:00,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:00,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:00,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:00,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:00,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:00,890 INFO L87 Difference]: Start difference. First operand 1274 states and 4967 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:00,999 INFO L93 Difference]: Finished difference Result 2545 states and 9237 transitions.
[2022-02-09 02:20:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:00,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:00,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:01,005 INFO L225 Difference]: With dead ends: 2545
[2022-02-09 02:20:01,005 INFO L226 Difference]: Without dead ends: 2340
[2022-02-09 02:20:01,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:01,005 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:01,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 153 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states.
[2022-02-09 02:20:01,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1258.
[2022-02-09 02:20:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9069212410501195) internal successors, (4911), 1257 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4911 transitions.
[2022-02-09 02:20:01,030 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4911 transitions. Word has length 25
[2022-02-09 02:20:01,030 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:01,030 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4911 transitions.
[2022-02-09 02:20:01,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4911 transitions.
[2022-02-09 02:20:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:01,032 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:01,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:01,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510
[2022-02-09 02:20:01,032 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:01,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -254440525, now seen corresponding path program 507 times
[2022-02-09 02:20:01,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:01,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015764632]
[2022-02-09 02:20:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:01,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:01,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:01,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015764632]
[2022-02-09 02:20:01,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015764632] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:01,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:01,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:01,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926724909]
[2022-02-09 02:20:01,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:01,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:01,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:01,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:01,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:01,159 INFO L87 Difference]: Start difference. First operand 1258 states and 4911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:01,267 INFO L93 Difference]: Finished difference Result 2513 states and 9131 transitions.
[2022-02-09 02:20:01,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:01,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:01,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:01,274 INFO L225 Difference]: With dead ends: 2513
[2022-02-09 02:20:01,274 INFO L226 Difference]: Without dead ends: 2354
[2022-02-09 02:20:01,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:01,274 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:01,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 158 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:01,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states.
[2022-02-09 02:20:01,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1274.
[2022-02-09 02:20:01,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.8955223880597014) internal successors, (4959), 1273 states have internal predecessors, (4959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions.
[2022-02-09 02:20:01,299 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25
[2022-02-09 02:20:01,299 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:01,299 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions.
[2022-02-09 02:20:01,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions.
[2022-02-09 02:20:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:01,301 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:01,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:01,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511
[2022-02-09 02:20:01,302 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:01,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 753857459, now seen corresponding path program 508 times
[2022-02-09 02:20:01,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:01,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429776429]
[2022-02-09 02:20:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:01,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:01,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:01,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429776429]
[2022-02-09 02:20:01,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429776429] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:01,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:01,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:01,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875171198]
[2022-02-09 02:20:01,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:01,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:01,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:01,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:01,422 INFO L87 Difference]: Start difference. First operand 1274 states and 4959 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:01,525 INFO L93 Difference]: Finished difference Result 2541 states and 9219 transitions.
[2022-02-09 02:20:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:01,531 INFO L225 Difference]: With dead ends: 2541
[2022-02-09 02:20:01,531 INFO L226 Difference]: Without dead ends: 2338
[2022-02-09 02:20:01,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:01,532 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:01,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 134 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states.
[2022-02-09 02:20:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1258.
[2022-02-09 02:20:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9005568814638027) internal successors, (4903), 1257 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions.
[2022-02-09 02:20:01,555 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25
[2022-02-09 02:20:01,555 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:01,555 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions.
[2022-02-09 02:20:01,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions.
[2022-02-09 02:20:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:01,557 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:01,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:01,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512
[2022-02-09 02:20:01,557 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:01,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1162721429, now seen corresponding path program 509 times
[2022-02-09 02:20:01,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:01,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312967563]
[2022-02-09 02:20:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:01,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:01,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:01,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312967563]
[2022-02-09 02:20:01,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312967563] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:01,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:01,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:01,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067733210]
[2022-02-09 02:20:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:01,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:01,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:01,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:01,678 INFO L87 Difference]: Start difference. First operand 1258 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:01,785 INFO L93 Difference]: Finished difference Result 2587 states and 9400 transitions.
[2022-02-09 02:20:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:01,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:01,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:01,791 INFO L225 Difference]: With dead ends: 2587
[2022-02-09 02:20:01,791 INFO L226 Difference]: Without dead ends: 2398
[2022-02-09 02:20:01,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:01,791 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:01,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 147 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states.
[2022-02-09 02:20:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 1288.
[2022-02-09 02:20:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.8818958818958818) internal successors, (4996), 1287 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4996 transitions.
[2022-02-09 02:20:01,813 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4996 transitions. Word has length 25
[2022-02-09 02:20:01,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:01,814 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 4996 transitions.
[2022-02-09 02:20:01,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:01,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4996 transitions.
[2022-02-09 02:20:01,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:01,816 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:01,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:01,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513
[2022-02-09 02:20:01,816 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash -880615565, now seen corresponding path program 510 times
[2022-02-09 02:20:01,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:01,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286108799]
[2022-02-09 02:20:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:01,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:01,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:01,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286108799]
[2022-02-09 02:20:01,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286108799] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:01,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:01,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:01,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221819095]
[2022-02-09 02:20:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:01,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:01,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:01,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:01,936 INFO L87 Difference]: Start difference. First operand 1288 states and 4996 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:02,052 INFO L93 Difference]: Finished difference Result 2585 states and 9365 transitions.
[2022-02-09 02:20:02,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:02,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:02,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:02,059 INFO L225 Difference]: With dead ends: 2585
[2022-02-09 02:20:02,059 INFO L226 Difference]: Without dead ends: 2360
[2022-02-09 02:20:02,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:02,059 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:02,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 135 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states.
[2022-02-09 02:20:02,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1250.
[2022-02-09 02:20:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.9063250600480384) internal successors, (4879), 1249 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4879 transitions.
[2022-02-09 02:20:02,086 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4879 transitions. Word has length 25
[2022-02-09 02:20:02,086 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:02,086 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4879 transitions.
[2022-02-09 02:20:02,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4879 transitions.
[2022-02-09 02:20:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:02,088 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:02,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:02,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514
[2022-02-09 02:20:02,088 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash -242532655, now seen corresponding path program 511 times
[2022-02-09 02:20:02,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:02,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729999594]
[2022-02-09 02:20:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:02,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:02,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:02,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729999594]
[2022-02-09 02:20:02,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729999594] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:02,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:02,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:02,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275092129]
[2022-02-09 02:20:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:02,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:02,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:02,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:02,225 INFO L87 Difference]: Start difference. First operand 1250 states and 4879 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:02,351 INFO L93 Difference]: Finished difference Result 2481 states and 9013 transitions.
[2022-02-09 02:20:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:02,357 INFO L225 Difference]: With dead ends: 2481
[2022-02-09 02:20:02,357 INFO L226 Difference]: Without dead ends: 2322
[2022-02-09 02:20:02,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:02,357 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 95 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:02,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 175 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:02,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states.
[2022-02-09 02:20:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 1274.
[2022-02-09 02:20:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.898664571877455) internal successors, (4963), 1273 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4963 transitions.
[2022-02-09 02:20:02,379 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4963 transitions. Word has length 25
[2022-02-09 02:20:02,379 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:02,379 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4963 transitions.
[2022-02-09 02:20:02,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4963 transitions.
[2022-02-09 02:20:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:02,381 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:02,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:02,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515
[2022-02-09 02:20:02,381 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:02,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1832467405, now seen corresponding path program 512 times
[2022-02-09 02:20:02,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:02,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284080052]
[2022-02-09 02:20:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:02,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:02,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:02,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284080052]
[2022-02-09 02:20:02,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284080052] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:02,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:02,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:02,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868349342]
[2022-02-09 02:20:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:02,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:02,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:02,503 INFO L87 Difference]: Start difference. First operand 1274 states and 4963 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:02,624 INFO L93 Difference]: Finished difference Result 2511 states and 9106 transitions.
[2022-02-09 02:20:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:02,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:02,630 INFO L225 Difference]: With dead ends: 2511
[2022-02-09 02:20:02,630 INFO L226 Difference]: Without dead ends: 2306
[2022-02-09 02:20:02,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:02,630 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:02,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states.
[2022-02-09 02:20:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1258.
[2022-02-09 02:20:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.903739061256961) internal successors, (4907), 1257 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4907 transitions.
[2022-02-09 02:20:02,652 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4907 transitions. Word has length 25
[2022-02-09 02:20:02,652 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:02,652 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4907 transitions.
[2022-02-09 02:20:02,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4907 transitions.
[2022-02-09 02:20:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:02,654 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:02,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:02,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516
[2022-02-09 02:20:02,654 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -192964911, now seen corresponding path program 513 times
[2022-02-09 02:20:02,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:02,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816476823]
[2022-02-09 02:20:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:02,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:02,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:02,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816476823]
[2022-02-09 02:20:02,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816476823] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:02,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:02,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:02,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293095213]
[2022-02-09 02:20:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:02,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:02,776 INFO L87 Difference]: Start difference. First operand 1258 states and 4907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:02,883 INFO L93 Difference]: Finished difference Result 2435 states and 8848 transitions.
[2022-02-09 02:20:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:02,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:02,889 INFO L225 Difference]: With dead ends: 2435
[2022-02-09 02:20:02,889 INFO L226 Difference]: Without dead ends: 2276
[2022-02-09 02:20:02,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:02,889 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:02,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states.
[2022-02-09 02:20:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1274.
[2022-02-09 02:20:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.892380204241948) internal successors, (4955), 1273 states have internal predecessors, (4955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4955 transitions.
[2022-02-09 02:20:02,911 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4955 transitions. Word has length 25
[2022-02-09 02:20:02,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:02,911 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4955 transitions.
[2022-02-09 02:20:02,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4955 transitions.
[2022-02-09 02:20:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:02,913 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:02,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:02,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517
[2022-02-09 02:20:02,914 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:02,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2135236911, now seen corresponding path program 514 times
[2022-02-09 02:20:02,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:02,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158356192]
[2022-02-09 02:20:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:02,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:03,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:03,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158356192]
[2022-02-09 02:20:03,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158356192] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:03,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:03,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:03,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097049838]
[2022-02-09 02:20:03,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:03,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:03,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:03,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:03,031 INFO L87 Difference]: Start difference. First operand 1274 states and 4955 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:03,138 INFO L93 Difference]: Finished difference Result 2323 states and 8511 transitions.
[2022-02-09 02:20:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:03,143 INFO L225 Difference]: With dead ends: 2323
[2022-02-09 02:20:03,143 INFO L226 Difference]: Without dead ends: 2132
[2022-02-09 02:20:03,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:03,143 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:03,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 150 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:03,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states.
[2022-02-09 02:20:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1258.
[2022-02-09 02:20:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.8973747016706444) internal successors, (4899), 1257 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4899 transitions.
[2022-02-09 02:20:03,164 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4899 transitions. Word has length 25
[2022-02-09 02:20:03,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:03,164 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4899 transitions.
[2022-02-09 02:20:03,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4899 transitions.
[2022-02-09 02:20:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:03,166 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:03,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:03,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518
[2022-02-09 02:20:03,166 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:03,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1224197043, now seen corresponding path program 515 times
[2022-02-09 02:20:03,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:03,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782805046]
[2022-02-09 02:20:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:03,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:03,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:03,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782805046]
[2022-02-09 02:20:03,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782805046] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:03,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:03,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:03,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148678669]
[2022-02-09 02:20:03,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:03,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:03,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:03,296 INFO L87 Difference]: Start difference. First operand 1258 states and 4899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:03,409 INFO L93 Difference]: Finished difference Result 2473 states and 8985 transitions.
[2022-02-09 02:20:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:03,415 INFO L225 Difference]: With dead ends: 2473
[2022-02-09 02:20:03,415 INFO L226 Difference]: Without dead ends: 2284
[2022-02-09 02:20:03,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:03,415 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:03,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 165 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states.
[2022-02-09 02:20:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 1282.
[2022-02-09 02:20:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.8836846213895395) internal successors, (4975), 1281 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4975 transitions.
[2022-02-09 02:20:03,437 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4975 transitions. Word has length 25
[2022-02-09 02:20:03,437 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:03,437 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4975 transitions.
[2022-02-09 02:20:03,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4975 transitions.
[2022-02-09 02:20:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:03,439 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:03,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:03,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519
[2022-02-09 02:20:03,439 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash 483244945, now seen corresponding path program 516 times
[2022-02-09 02:20:03,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:03,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090033754]
[2022-02-09 02:20:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:03,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:03,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:03,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090033754]
[2022-02-09 02:20:03,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090033754] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:03,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:03,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:03,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321453237]
[2022-02-09 02:20:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:03,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:03,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:03,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:03,557 INFO L87 Difference]: Start difference. First operand 1282 states and 4975 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:03,659 INFO L93 Difference]: Finished difference Result 2331 states and 8531 transitions.
[2022-02-09 02:20:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:03,664 INFO L225 Difference]: With dead ends: 2331
[2022-02-09 02:20:03,664 INFO L226 Difference]: Without dead ends: 2124
[2022-02-09 02:20:03,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:03,665 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:03,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states.
[2022-02-09 02:20:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1250.
[2022-02-09 02:20:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.9031224979983987) internal successors, (4875), 1249 states have internal predecessors, (4875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4875 transitions.
[2022-02-09 02:20:03,688 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4875 transitions. Word has length 25
[2022-02-09 02:20:03,688 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:03,688 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4875 transitions.
[2022-02-09 02:20:03,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4875 transitions.
[2022-02-09 02:20:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:03,690 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:03,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:03,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520
[2022-02-09 02:20:03,690 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:03,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:03,690 INFO L85 PathProgramCache]: Analyzing trace with hash 145472307, now seen corresponding path program 517 times
[2022-02-09 02:20:03,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:03,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721549682]
[2022-02-09 02:20:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:03,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:03,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:03,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721549682]
[2022-02-09 02:20:03,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721549682] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:03,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:03,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:03,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863802015]
[2022-02-09 02:20:03,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:03,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:03,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:03,812 INFO L87 Difference]: Start difference. First operand 1250 states and 4875 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:03,906 INFO L93 Difference]: Finished difference Result 2477 states and 8999 transitions.
[2022-02-09 02:20:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:03,911 INFO L225 Difference]: With dead ends: 2477
[2022-02-09 02:20:03,911 INFO L226 Difference]: Without dead ends: 2318
[2022-02-09 02:20:03,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:03,912 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:03,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 153 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states.
[2022-02-09 02:20:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1274.
[2022-02-09 02:20:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.8955223880597014) internal successors, (4959), 1273 states have internal predecessors, (4959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions.
[2022-02-09 02:20:03,933 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25
[2022-02-09 02:20:03,933 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:03,933 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions.
[2022-02-09 02:20:03,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions.
[2022-02-09 02:20:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:03,935 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:03,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:03,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521
[2022-02-09 02:20:03,936 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:03,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:03,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1153770291, now seen corresponding path program 518 times
[2022-02-09 02:20:03,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:03,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873619449]
[2022-02-09 02:20:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:03,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:04,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:04,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873619449]
[2022-02-09 02:20:04,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873619449] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:04,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:04,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:04,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23002706]
[2022-02-09 02:20:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:04,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:04,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:04,066 INFO L87 Difference]: Start difference. First operand 1274 states and 4959 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:04,168 INFO L93 Difference]: Finished difference Result 2505 states and 9087 transitions.
[2022-02-09 02:20:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:04,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:04,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:04,174 INFO L225 Difference]: With dead ends: 2505
[2022-02-09 02:20:04,174 INFO L226 Difference]: Without dead ends: 2302
[2022-02-09 02:20:04,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:04,174 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:04,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 140 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states.
[2022-02-09 02:20:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1258.
[2022-02-09 02:20:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9005568814638027) internal successors, (4903), 1257 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions.
[2022-02-09 02:20:04,199 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25
[2022-02-09 02:20:04,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:04,199 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions.
[2022-02-09 02:20:04,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions.
[2022-02-09 02:20:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:04,201 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:04,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:04,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522
[2022-02-09 02:20:04,202 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1970607343, now seen corresponding path program 519 times
[2022-02-09 02:20:04,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:04,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771112965]
[2022-02-09 02:20:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:04,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:04,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:04,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771112965]
[2022-02-09 02:20:04,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771112965] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:04,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:04,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:04,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781009550]
[2022-02-09 02:20:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:04,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:04,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:04,322 INFO L87 Difference]: Start difference. First operand 1258 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:04,424 INFO L93 Difference]: Finished difference Result 2433 states and 8839 transitions.
[2022-02-09 02:20:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:04,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:04,430 INFO L225 Difference]: With dead ends: 2433
[2022-02-09 02:20:04,430 INFO L226 Difference]: Without dead ends: 2274
[2022-02-09 02:20:04,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:04,430 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:04,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 158 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states.
[2022-02-09 02:20:04,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1274.
[2022-02-09 02:20:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.889238020424195) internal successors, (4951), 1273 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4951 transitions.
[2022-02-09 02:20:04,452 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4951 transitions. Word has length 25
[2022-02-09 02:20:04,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:04,452 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4951 transitions.
[2022-02-09 02:20:04,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4951 transitions.
[2022-02-09 02:20:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:04,454 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:04,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:04,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523
[2022-02-09 02:20:04,454 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:04,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1678828339, now seen corresponding path program 520 times
[2022-02-09 02:20:04,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:04,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608392945]
[2022-02-09 02:20:04,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:04,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:04,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:04,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608392945]
[2022-02-09 02:20:04,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608392945] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:04,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:04,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:04,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521236606]
[2022-02-09 02:20:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:04,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:04,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:04,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:04,576 INFO L87 Difference]: Start difference. First operand 1274 states and 4951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:04,683 INFO L93 Difference]: Finished difference Result 2321 states and 8502 transitions.
[2022-02-09 02:20:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:04,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:04,688 INFO L225 Difference]: With dead ends: 2321
[2022-02-09 02:20:04,688 INFO L226 Difference]: Without dead ends: 2130
[2022-02-09 02:20:04,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:04,689 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:04,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:04,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states.
[2022-02-09 02:20:04,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1258.
[2022-02-09 02:20:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.894192521877486) internal successors, (4895), 1257 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4895 transitions.
[2022-02-09 02:20:04,710 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4895 transitions. Word has length 25
[2022-02-09 02:20:04,710 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:04,710 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4895 transitions.
[2022-02-09 02:20:04,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4895 transitions.
[2022-02-09 02:20:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:04,712 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:04,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:04,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524
[2022-02-09 02:20:04,712 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1353815245, now seen corresponding path program 521 times
[2022-02-09 02:20:04,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:04,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939743766]
[2022-02-09 02:20:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:04,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:04,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:04,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939743766]
[2022-02-09 02:20:04,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939743766] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:04,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:04,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:04,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175985467]
[2022-02-09 02:20:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:04,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:04,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:04,832 INFO L87 Difference]: Start difference. First operand 1258 states and 4895 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:04,940 INFO L93 Difference]: Finished difference Result 2469 states and 8971 transitions.
[2022-02-09 02:20:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:04,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:04,945 INFO L225 Difference]: With dead ends: 2469
[2022-02-09 02:20:04,945 INFO L226 Difference]: Without dead ends: 2282
[2022-02-09 02:20:04,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:04,946 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:04,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:04,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states.
[2022-02-09 02:20:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1282.
[2022-02-09 02:20:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.88056206088993) internal successors, (4971), 1281 states have internal predecessors, (4971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4971 transitions.
[2022-02-09 02:20:04,968 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4971 transitions. Word has length 25
[2022-02-09 02:20:04,968 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:04,968 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4971 transitions.
[2022-02-09 02:20:04,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4971 transitions.
[2022-02-09 02:20:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:04,970 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:04,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:04,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525
[2022-02-09 02:20:04,970 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1549007505, now seen corresponding path program 522 times
[2022-02-09 02:20:04,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:04,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337558653]
[2022-02-09 02:20:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:05,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:05,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337558653]
[2022-02-09 02:20:05,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337558653] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:05,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:05,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:05,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179777473]
[2022-02-09 02:20:05,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:05,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:05,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:05,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:05,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:05,093 INFO L87 Difference]: Start difference. First operand 1282 states and 4971 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:05,220 INFO L93 Difference]: Finished difference Result 2329 states and 8522 transitions.
[2022-02-09 02:20:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:05,225 INFO L225 Difference]: With dead ends: 2329
[2022-02-09 02:20:05,225 INFO L226 Difference]: Without dead ends: 2122
[2022-02-09 02:20:05,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:05,226 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:05,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 165 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states.
[2022-02-09 02:20:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1250.
[2022-02-09 02:20:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.899919935948759) internal successors, (4871), 1249 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4871 transitions.
[2022-02-09 02:20:05,246 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4871 transitions. Word has length 25
[2022-02-09 02:20:05,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:05,246 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4871 transitions.
[2022-02-09 02:20:05,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4871 transitions.
[2022-02-09 02:20:05,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:05,248 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:05,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:05,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526
[2022-02-09 02:20:05,248 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:05,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:05,249 INFO L85 PathProgramCache]: Analyzing trace with hash 869576597, now seen corresponding path program 523 times
[2022-02-09 02:20:05,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:05,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325697710]
[2022-02-09 02:20:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:05,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:05,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:05,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325697710]
[2022-02-09 02:20:05,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325697710] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:05,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:05,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:05,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328584506]
[2022-02-09 02:20:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:05,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:05,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:05,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:05,363 INFO L87 Difference]: Start difference. First operand 1250 states and 4871 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:05,470 INFO L93 Difference]: Finished difference Result 2593 states and 9437 transitions.
[2022-02-09 02:20:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:05,476 INFO L225 Difference]: With dead ends: 2593
[2022-02-09 02:20:05,476 INFO L226 Difference]: Without dead ends: 2404
[2022-02-09 02:20:05,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:05,477 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:05,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 141 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states.
[2022-02-09 02:20:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1292.
[2022-02-09 02:20:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 3.8884585592563905) internal successors, (5020), 1291 states have internal predecessors, (5020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 5020 transitions.
[2022-02-09 02:20:05,501 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 5020 transitions. Word has length 25
[2022-02-09 02:20:05,501 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:05,501 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 5020 transitions.
[2022-02-09 02:20:05,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 5020 transitions.
[2022-02-09 02:20:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:05,503 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:05,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:05,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527
[2022-02-09 02:20:05,504 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:05,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:05,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1173760397, now seen corresponding path program 524 times
[2022-02-09 02:20:05,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:05,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240560971]
[2022-02-09 02:20:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:05,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:05,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:05,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240560971]
[2022-02-09 02:20:05,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240560971] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:05,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:05,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:05,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003220815]
[2022-02-09 02:20:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:05,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:05,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:05,619 INFO L87 Difference]: Start difference. First operand 1292 states and 5020 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:05,723 INFO L93 Difference]: Finished difference Result 2591 states and 9402 transitions.
[2022-02-09 02:20:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:05,729 INFO L225 Difference]: With dead ends: 2591
[2022-02-09 02:20:05,729 INFO L226 Difference]: Without dead ends: 2374
[2022-02-09 02:20:05,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:05,730 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:05,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 151 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states.
[2022-02-09 02:20:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1262.
[2022-02-09 02:20:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.8977002379064234) internal successors, (4915), 1261 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4915 transitions.
[2022-02-09 02:20:05,753 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4915 transitions. Word has length 25
[2022-02-09 02:20:05,753 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:05,753 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4915 transitions.
[2022-02-09 02:20:05,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4915 transitions.
[2022-02-09 02:20:05,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:05,755 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:05,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:05,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528
[2022-02-09 02:20:05,756 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:05,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1246503053, now seen corresponding path program 525 times
[2022-02-09 02:20:05,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:05,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744264196]
[2022-02-09 02:20:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:05,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:05,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:05,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744264196]
[2022-02-09 02:20:05,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744264196] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:05,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:05,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:05,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923620678]
[2022-02-09 02:20:05,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:05,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:05,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:05,874 INFO L87 Difference]: Start difference. First operand 1262 states and 4915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:05,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:05,979 INFO L93 Difference]: Finished difference Result 2513 states and 9141 transitions.
[2022-02-09 02:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:05,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:05,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:05,984 INFO L225 Difference]: With dead ends: 2513
[2022-02-09 02:20:05,984 INFO L226 Difference]: Without dead ends: 2324
[2022-02-09 02:20:05,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:05,984 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:05,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 148 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:05,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states.
[2022-02-09 02:20:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286.
[2022-02-09 02:20:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.884046692607004) internal successors, (4991), 1285 states have internal predecessors, (4991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4991 transitions.
[2022-02-09 02:20:06,008 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4991 transitions. Word has length 25
[2022-02-09 02:20:06,008 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:06,008 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4991 transitions.
[2022-02-09 02:20:06,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4991 transitions.
[2022-02-09 02:20:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:06,010 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:06,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:06,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529
[2022-02-09 02:20:06,010 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:06,011 INFO L85 PathProgramCache]: Analyzing trace with hash -690714765, now seen corresponding path program 526 times
[2022-02-09 02:20:06,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:06,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818010747]
[2022-02-09 02:20:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:06,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:06,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:06,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818010747]
[2022-02-09 02:20:06,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818010747] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:06,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:06,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:06,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710953569]
[2022-02-09 02:20:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:06,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:06,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:06,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:06,129 INFO L87 Difference]: Start difference. First operand 1286 states and 4991 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:06,230 INFO L93 Difference]: Finished difference Result 2371 states and 8687 transitions.
[2022-02-09 02:20:06,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:06,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:06,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:06,236 INFO L225 Difference]: With dead ends: 2371
[2022-02-09 02:20:06,236 INFO L226 Difference]: Without dead ends: 2172
[2022-02-09 02:20:06,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:06,236 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:06,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 136 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states.
[2022-02-09 02:20:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1262.
[2022-02-09 02:20:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.888183980967486) internal successors, (4903), 1261 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4903 transitions.
[2022-02-09 02:20:06,259 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4903 transitions. Word has length 25
[2022-02-09 02:20:06,259 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:06,259 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4903 transitions.
[2022-02-09 02:20:06,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4903 transitions.
[2022-02-09 02:20:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:06,261 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:06,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:06,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530
[2022-02-09 02:20:06,261 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:06,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:06,262 INFO L85 PathProgramCache]: Analyzing trace with hash -264155439, now seen corresponding path program 527 times
[2022-02-09 02:20:06,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:06,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396424624]
[2022-02-09 02:20:06,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:06,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:06,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:06,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396424624]
[2022-02-09 02:20:06,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396424624] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:06,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:06,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:06,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953246657]
[2022-02-09 02:20:06,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:06,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:06,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:06,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:06,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:06,378 INFO L87 Difference]: Start difference. First operand 1262 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:06,493 INFO L93 Difference]: Finished difference Result 2511 states and 9124 transitions.
[2022-02-09 02:20:06,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:06,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:06,499 INFO L225 Difference]: With dead ends: 2511
[2022-02-09 02:20:06,499 INFO L226 Difference]: Without dead ends: 2324
[2022-02-09 02:20:06,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:06,499 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:06,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states.
[2022-02-09 02:20:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286.
[2022-02-09 02:20:06,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.8747081712062257) internal successors, (4979), 1285 states have internal predecessors, (4979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4979 transitions.
[2022-02-09 02:20:06,523 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4979 transitions. Word has length 25
[2022-02-09 02:20:06,523 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:06,523 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4979 transitions.
[2022-02-09 02:20:06,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4979 transitions.
[2022-02-09 02:20:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:06,525 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:06,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:06,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531
[2022-02-09 02:20:06,525 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:06,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:06,525 INFO L85 PathProgramCache]: Analyzing trace with hash -470963405, now seen corresponding path program 528 times
[2022-02-09 02:20:06,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:06,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273523927]
[2022-02-09 02:20:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:06,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:06,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:06,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273523927]
[2022-02-09 02:20:06,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273523927] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:06,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:06,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:06,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526037853]
[2022-02-09 02:20:06,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:06,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:06,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:06,642 INFO L87 Difference]: Start difference. First operand 1286 states and 4979 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:06,756 INFO L93 Difference]: Finished difference Result 2371 states and 8675 transitions.
[2022-02-09 02:20:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:06,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:06,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:06,762 INFO L225 Difference]: With dead ends: 2371
[2022-02-09 02:20:06,762 INFO L226 Difference]: Without dead ends: 2156
[2022-02-09 02:20:06,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:06,762 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:06,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states.
[2022-02-09 02:20:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 1246.
[2022-02-09 02:20:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.9044176706827307) internal successors, (4861), 1245 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4861 transitions.
[2022-02-09 02:20:06,784 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4861 transitions. Word has length 25
[2022-02-09 02:20:06,784 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:06,784 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4861 transitions.
[2022-02-09 02:20:06,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4861 transitions.
[2022-02-09 02:20:06,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:06,786 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:06,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:06,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532
[2022-02-09 02:20:06,786 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:06,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2124889421, now seen corresponding path program 529 times
[2022-02-09 02:20:06,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:06,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929926218]
[2022-02-09 02:20:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:06,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:06,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:06,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929926218]
[2022-02-09 02:20:06,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929926218] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:06,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:06,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:06,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521326439]
[2022-02-09 02:20:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:06,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:06,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:06,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:06,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:06,904 INFO L87 Difference]: Start difference. First operand 1246 states and 4861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:06,997 INFO L93 Difference]: Finished difference Result 2475 states and 8984 transitions.
[2022-02-09 02:20:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:07,002 INFO L225 Difference]: With dead ends: 2475
[2022-02-09 02:20:07,002 INFO L226 Difference]: Without dead ends: 2316
[2022-02-09 02:20:07,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:07,002 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 128 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:07,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 142 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:07,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states.
[2022-02-09 02:20:07,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1262.
[2022-02-09 02:20:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.8929421094369547) internal successors, (4909), 1261 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4909 transitions.
[2022-02-09 02:20:07,024 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4909 transitions. Word has length 25
[2022-02-09 02:20:07,024 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:07,024 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4909 transitions.
[2022-02-09 02:20:07,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4909 transitions.
[2022-02-09 02:20:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:07,026 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:07,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:07,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533
[2022-02-09 02:20:07,026 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash 580143125, now seen corresponding path program 530 times
[2022-02-09 02:20:07,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:07,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346183025]
[2022-02-09 02:20:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:07,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:07,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:07,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346183025]
[2022-02-09 02:20:07,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346183025] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:07,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:07,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:07,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430926731]
[2022-02-09 02:20:07,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:07,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:07,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:07,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:07,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:07,145 INFO L87 Difference]: Start difference. First operand 1262 states and 4909 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:07,249 INFO L93 Difference]: Finished difference Result 2505 states and 9077 transitions.
[2022-02-09 02:20:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:07,254 INFO L225 Difference]: With dead ends: 2505
[2022-02-09 02:20:07,254 INFO L226 Difference]: Without dead ends: 2300
[2022-02-09 02:20:07,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:07,255 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:07,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 137 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states.
[2022-02-09 02:20:07,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 1246.
[2022-02-09 02:20:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.897991967871486) internal successors, (4853), 1245 states have internal predecessors, (4853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4853 transitions.
[2022-02-09 02:20:07,278 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4853 transitions. Word has length 25
[2022-02-09 02:20:07,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:07,279 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4853 transitions.
[2022-02-09 02:20:07,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4853 transitions.
[2022-02-09 02:20:07,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:07,281 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:07,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:07,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534
[2022-02-09 02:20:07,281 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:07,281 INFO L85 PathProgramCache]: Analyzing trace with hash 481831603, now seen corresponding path program 531 times
[2022-02-09 02:20:07,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:07,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257050566]
[2022-02-09 02:20:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:07,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:07,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:07,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257050566]
[2022-02-09 02:20:07,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257050566] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:07,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:07,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:07,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722164944]
[2022-02-09 02:20:07,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:07,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:07,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:07,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:07,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:07,400 INFO L87 Difference]: Start difference. First operand 1246 states and 4853 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:07,510 INFO L93 Difference]: Finished difference Result 2469 states and 8959 transitions.
[2022-02-09 02:20:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:07,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:07,516 INFO L225 Difference]: With dead ends: 2469
[2022-02-09 02:20:07,516 INFO L226 Difference]: Without dead ends: 2310
[2022-02-09 02:20:07,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:07,516 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:07,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:07,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states.
[2022-02-09 02:20:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1262.
[2022-02-09 02:20:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.88659793814433) internal successors, (4901), 1261 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4901 transitions.
[2022-02-09 02:20:07,539 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4901 transitions. Word has length 25
[2022-02-09 02:20:07,539 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:07,539 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4901 transitions.
[2022-02-09 02:20:07,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4901 transitions.
[2022-02-09 02:20:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:07,541 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:07,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:07,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535
[2022-02-09 02:20:07,541 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2132639053, now seen corresponding path program 532 times
[2022-02-09 02:20:07,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:07,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000111274]
[2022-02-09 02:20:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:07,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:07,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:07,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000111274]
[2022-02-09 02:20:07,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000111274] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:07,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:07,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:07,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888796185]
[2022-02-09 02:20:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:07,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:07,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:07,657 INFO L87 Difference]: Start difference. First operand 1262 states and 4901 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:07,761 INFO L93 Difference]: Finished difference Result 2493 states and 9035 transitions.
[2022-02-09 02:20:07,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:07,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:07,766 INFO L225 Difference]: With dead ends: 2493
[2022-02-09 02:20:07,766 INFO L226 Difference]: Without dead ends: 2294
[2022-02-09 02:20:07,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:07,767 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:07,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 137 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states.
[2022-02-09 02:20:07,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1246.
[2022-02-09 02:20:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.891566265060241) internal successors, (4845), 1245 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4845 transitions.
[2022-02-09 02:20:07,788 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4845 transitions. Word has length 25
[2022-02-09 02:20:07,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:07,788 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4845 transitions.
[2022-02-09 02:20:07,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4845 transitions.
[2022-02-09 02:20:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:07,790 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:07,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:07,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536
[2022-02-09 02:20:07,790 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:07,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:07,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1898993557, now seen corresponding path program 533 times
[2022-02-09 02:20:07,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:07,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147919126]
[2022-02-09 02:20:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:07,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:07,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:07,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147919126]
[2022-02-09 02:20:07,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147919126] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:07,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:07,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:07,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158054857]
[2022-02-09 02:20:07,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:07,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:07,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:07,926 INFO L87 Difference]: Start difference. First operand 1246 states and 4845 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:08,033 INFO L93 Difference]: Finished difference Result 2541 states and 9221 transitions.
[2022-02-09 02:20:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:08,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:08,039 INFO L225 Difference]: With dead ends: 2541
[2022-02-09 02:20:08,039 INFO L226 Difference]: Without dead ends: 2352
[2022-02-09 02:20:08,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:08,039 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 114 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:08,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:08,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states.
[2022-02-09 02:20:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1274.
[2022-02-09 02:20:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.875098193244305) internal successors, (4933), 1273 states have internal predecessors, (4933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4933 transitions.
[2022-02-09 02:20:08,063 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4933 transitions. Word has length 25
[2022-02-09 02:20:08,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:08,063 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4933 transitions.
[2022-02-09 02:20:08,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4933 transitions.
[2022-02-09 02:20:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:08,065 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:08,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:08,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537
[2022-02-09 02:20:08,065 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:08,066 INFO L85 PathProgramCache]: Analyzing trace with hash 506849011, now seen corresponding path program 534 times
[2022-02-09 02:20:08,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:08,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475865129]
[2022-02-09 02:20:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:08,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:08,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:08,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475865129]
[2022-02-09 02:20:08,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475865129] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:08,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:08,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:08,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865884617]
[2022-02-09 02:20:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:08,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:08,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:08,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:08,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:08,182 INFO L87 Difference]: Start difference. First operand 1274 states and 4933 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:08,291 INFO L93 Difference]: Finished difference Result 2535 states and 9176 transitions.
[2022-02-09 02:20:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:08,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:08,298 INFO L225 Difference]: With dead ends: 2535
[2022-02-09 02:20:08,298 INFO L226 Difference]: Without dead ends: 2316
[2022-02-09 02:20:08,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:08,298 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:08,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 147 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states.
[2022-02-09 02:20:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1238.
[2022-02-09 02:20:08,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.89733225545675) internal successors, (4821), 1237 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4821 transitions.
[2022-02-09 02:20:08,321 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4821 transitions. Word has length 25
[2022-02-09 02:20:08,321 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:08,321 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4821 transitions.
[2022-02-09 02:20:08,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4821 transitions.
[2022-02-09 02:20:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:08,323 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:08,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:08,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538
[2022-02-09 02:20:08,323 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash 147016337, now seen corresponding path program 535 times
[2022-02-09 02:20:08,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:08,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957543727]
[2022-02-09 02:20:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:08,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:08,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957543727]
[2022-02-09 02:20:08,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957543727] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:08,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:08,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:08,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613877406]
[2022-02-09 02:20:08,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:08,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:08,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:08,441 INFO L87 Difference]: Start difference. First operand 1238 states and 4821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:08,540 INFO L93 Difference]: Finished difference Result 2439 states and 8836 transitions.
[2022-02-09 02:20:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:08,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:08,545 INFO L225 Difference]: With dead ends: 2439
[2022-02-09 02:20:08,545 INFO L226 Difference]: Without dead ends: 2280
[2022-02-09 02:20:08,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:08,545 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:08,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 154 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states.
[2022-02-09 02:20:08,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1238.
[2022-02-09 02:20:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8843977364591753) internal successors, (4805), 1237 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4805 transitions.
[2022-02-09 02:20:08,569 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4805 transitions. Word has length 25
[2022-02-09 02:20:08,569 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:08,569 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4805 transitions.
[2022-02-09 02:20:08,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4805 transitions.
[2022-02-09 02:20:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:08,571 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:08,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:08,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539
[2022-02-09 02:20:08,571 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:08,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1442918413, now seen corresponding path program 536 times
[2022-02-09 02:20:08,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:08,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896442656]
[2022-02-09 02:20:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:08,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:08,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:08,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896442656]
[2022-02-09 02:20:08,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896442656] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:08,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:08,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:08,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728034135]
[2022-02-09 02:20:08,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:08,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:08,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:08,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:08,690 INFO L87 Difference]: Start difference. First operand 1238 states and 4805 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:08,791 INFO L93 Difference]: Finished difference Result 2469 states and 8929 transitions.
[2022-02-09 02:20:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:08,797 INFO L225 Difference]: With dead ends: 2469
[2022-02-09 02:20:08,797 INFO L226 Difference]: Without dead ends: 2264
[2022-02-09 02:20:08,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:08,798 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 136 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:08,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 132 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:08,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states.
[2022-02-09 02:20:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1222.
[2022-02-09 02:20:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8894348894348894) internal successors, (4749), 1221 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4749 transitions.
[2022-02-09 02:20:08,821 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4749 transitions. Word has length 25
[2022-02-09 02:20:08,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:08,821 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4749 transitions.
[2022-02-09 02:20:08,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4749 transitions.
[2022-02-09 02:20:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:08,823 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:08,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:08,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540
[2022-02-09 02:20:08,823 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1516636851, now seen corresponding path program 537 times
[2022-02-09 02:20:08,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:08,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524887964]
[2022-02-09 02:20:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:08,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:08,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:08,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524887964]
[2022-02-09 02:20:08,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524887964] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:08,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:08,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:08,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737220525]
[2022-02-09 02:20:08,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:08,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:08,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:08,944 INFO L87 Difference]: Start difference. First operand 1222 states and 4749 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:09,041 INFO L93 Difference]: Finished difference Result 2393 states and 8671 transitions.
[2022-02-09 02:20:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:09,047 INFO L225 Difference]: With dead ends: 2393
[2022-02-09 02:20:09,047 INFO L226 Difference]: Without dead ends: 2234
[2022-02-09 02:20:09,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:09,047 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:09,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 154 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states.
[2022-02-09 02:20:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1238.
[2022-02-09 02:20:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.877930476960388) internal successors, (4797), 1237 states have internal predecessors, (4797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4797 transitions.
[2022-02-09 02:20:09,070 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4797 transitions. Word has length 25
[2022-02-09 02:20:09,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:09,070 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4797 transitions.
[2022-02-09 02:20:09,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4797 transitions.
[2022-02-09 02:20:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:09,072 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:09,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:09,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541
[2022-02-09 02:20:09,072 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash -425635149, now seen corresponding path program 538 times
[2022-02-09 02:20:09,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:09,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289495620]
[2022-02-09 02:20:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:09,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:09,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:09,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289495620]
[2022-02-09 02:20:09,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289495620] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:09,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:09,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:09,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657529377]
[2022-02-09 02:20:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:09,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:09,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:09,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:09,194 INFO L87 Difference]: Start difference. First operand 1238 states and 4797 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:09,304 INFO L93 Difference]: Finished difference Result 2281 states and 8334 transitions.
[2022-02-09 02:20:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:09,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:09,310 INFO L225 Difference]: With dead ends: 2281
[2022-02-09 02:20:09,310 INFO L226 Difference]: Without dead ends: 2090
[2022-02-09 02:20:09,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:09,310 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:09,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 148 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states.
[2022-02-09 02:20:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1222.
[2022-02-09 02:20:09,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8828828828828827) internal successors, (4741), 1221 states have internal predecessors, (4741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4741 transitions.
[2022-02-09 02:20:09,330 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4741 transitions. Word has length 25
[2022-02-09 02:20:09,331 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:09,331 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4741 transitions.
[2022-02-09 02:20:09,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4741 transitions.
[2022-02-09 02:20:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:09,332 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:09,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:09,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542
[2022-02-09 02:20:09,333 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1361168491, now seen corresponding path program 539 times
[2022-02-09 02:20:09,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:09,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356523536]
[2022-02-09 02:20:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:09,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:09,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:09,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356523536]
[2022-02-09 02:20:09,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356523536] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:09,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:09,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:09,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897586597]
[2022-02-09 02:20:09,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:09,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:09,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:09,454 INFO L87 Difference]: Start difference. First operand 1222 states and 4741 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:09,563 INFO L93 Difference]: Finished difference Result 2431 states and 8808 transitions.
[2022-02-09 02:20:09,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:09,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:09,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:09,569 INFO L225 Difference]: With dead ends: 2431
[2022-02-09 02:20:09,569 INFO L226 Difference]: Without dead ends: 2242
[2022-02-09 02:20:09,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:09,569 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:09,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states.
[2022-02-09 02:20:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1246.
[2022-02-09 02:20:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.8690763052208834) internal successors, (4817), 1245 states have internal predecessors, (4817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4817 transitions.
[2022-02-09 02:20:09,591 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4817 transitions. Word has length 25
[2022-02-09 02:20:09,591 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:09,591 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4817 transitions.
[2022-02-09 02:20:09,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4817 transitions.
[2022-02-09 02:20:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:09,593 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:09,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:09,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543
[2022-02-09 02:20:09,593 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2102120589, now seen corresponding path program 540 times
[2022-02-09 02:20:09,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:09,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794344404]
[2022-02-09 02:20:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:09,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:09,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:09,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:09,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794344404]
[2022-02-09 02:20:09,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794344404] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:09,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:09,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:09,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924585087]
[2022-02-09 02:20:09,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:09,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:09,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:09,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:09,716 INFO L87 Difference]: Start difference. First operand 1246 states and 4817 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:09,826 INFO L93 Difference]: Finished difference Result 2289 states and 8354 transitions.
[2022-02-09 02:20:09,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:09,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:09,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:09,831 INFO L225 Difference]: With dead ends: 2289
[2022-02-09 02:20:09,831 INFO L226 Difference]: Without dead ends: 2082
[2022-02-09 02:20:09,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:09,831 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:09,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 149 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states.
[2022-02-09 02:20:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1214.
[2022-02-09 02:20:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 3.8887056883759277) internal successors, (4717), 1213 states have internal predecessors, (4717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4717 transitions.
[2022-02-09 02:20:09,863 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4717 transitions. Word has length 25
[2022-02-09 02:20:09,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:09,863 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4717 transitions.
[2022-02-09 02:20:09,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4717 transitions.
[2022-02-09 02:20:09,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:09,865 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:09,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:09,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544
[2022-02-09 02:20:09,865 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 871793331, now seen corresponding path program 541 times
[2022-02-09 02:20:09,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:09,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382296827]
[2022-02-09 02:20:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:09,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:09,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:09,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382296827]
[2022-02-09 02:20:09,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382296827] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:09,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:09,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:09,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118059548]
[2022-02-09 02:20:09,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:09,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:09,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:09,981 INFO L87 Difference]: Start difference. First operand 1214 states and 4717 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:10,078 INFO L93 Difference]: Finished difference Result 2395 states and 8686 transitions.
[2022-02-09 02:20:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:10,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:10,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:10,084 INFO L225 Difference]: With dead ends: 2395
[2022-02-09 02:20:10,084 INFO L226 Difference]: Without dead ends: 2236
[2022-02-09 02:20:10,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:10,085 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:10,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states.
[2022-02-09 02:20:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1238.
[2022-02-09 02:20:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8811641067097815) internal successors, (4801), 1237 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4801 transitions.
[2022-02-09 02:20:10,108 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4801 transitions. Word has length 25
[2022-02-09 02:20:10,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:10,108 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4801 transitions.
[2022-02-09 02:20:10,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4801 transitions.
[2022-02-09 02:20:10,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:10,110 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:10,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:10,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545
[2022-02-09 02:20:10,111 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:10,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1742677325, now seen corresponding path program 542 times
[2022-02-09 02:20:10,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:10,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497448146]
[2022-02-09 02:20:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:10,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:10,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:10,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497448146]
[2022-02-09 02:20:10,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497448146] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:10,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:10,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:10,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946211591]
[2022-02-09 02:20:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:10,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:10,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:10,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:10,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:10,229 INFO L87 Difference]: Start difference. First operand 1238 states and 4801 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:10,342 INFO L93 Difference]: Finished difference Result 2419 states and 8762 transitions.
[2022-02-09 02:20:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:10,347 INFO L225 Difference]: With dead ends: 2419
[2022-02-09 02:20:10,347 INFO L226 Difference]: Without dead ends: 2220
[2022-02-09 02:20:10,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:10,347 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:10,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 155 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states.
[2022-02-09 02:20:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1222.
[2022-02-09 02:20:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8861588861588863) internal successors, (4745), 1221 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4745 transitions.
[2022-02-09 02:20:10,368 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4745 transitions. Word has length 25
[2022-02-09 02:20:10,368 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:10,368 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4745 transitions.
[2022-02-09 02:20:10,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4745 transitions.
[2022-02-09 02:20:10,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:10,370 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:10,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:10,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546
[2022-02-09 02:20:10,370 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:10,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:10,370 INFO L85 PathProgramCache]: Analyzing trace with hash 24996369, now seen corresponding path program 543 times
[2022-02-09 02:20:10,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:10,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488208903]
[2022-02-09 02:20:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:10,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:10,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:10,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488208903]
[2022-02-09 02:20:10,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488208903] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:10,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:10,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:10,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119514441]
[2022-02-09 02:20:10,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:10,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:10,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:10,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:10,489 INFO L87 Difference]: Start difference. First operand 1222 states and 4745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:10,583 INFO L93 Difference]: Finished difference Result 2339 states and 8474 transitions.
[2022-02-09 02:20:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:10,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:10,588 INFO L225 Difference]: With dead ends: 2339
[2022-02-09 02:20:10,588 INFO L226 Difference]: Without dead ends: 2180
[2022-02-09 02:20:10,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:10,588 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:10,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 148 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states.
[2022-02-09 02:20:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 1238.
[2022-02-09 02:20:10,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8746968472109944) internal successors, (4793), 1237 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4793 transitions.
[2022-02-09 02:20:10,610 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4793 transitions. Word has length 25
[2022-02-09 02:20:10,610 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:10,610 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4793 transitions.
[2022-02-09 02:20:10,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4793 transitions.
[2022-02-09 02:20:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:10,613 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:10,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:10,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547
[2022-02-09 02:20:10,613 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 667335347, now seen corresponding path program 544 times
[2022-02-09 02:20:10,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:10,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039285704]
[2022-02-09 02:20:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:10,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:10,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:10,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039285704]
[2022-02-09 02:20:10,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039285704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:10,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:10,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:10,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042337158]
[2022-02-09 02:20:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:10,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:10,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:10,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:10,734 INFO L87 Difference]: Start difference. First operand 1238 states and 4793 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:10,837 INFO L93 Difference]: Finished difference Result 2227 states and 8137 transitions.
[2022-02-09 02:20:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:10,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:10,842 INFO L225 Difference]: With dead ends: 2227
[2022-02-09 02:20:10,842 INFO L226 Difference]: Without dead ends: 2036
[2022-02-09 02:20:10,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:10,843 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:10,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 142 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:10,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states.
[2022-02-09 02:20:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1222.
[2022-02-09 02:20:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8796068796068797) internal successors, (4737), 1221 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4737 transitions.
[2022-02-09 02:20:10,862 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4737 transitions. Word has length 25
[2022-02-09 02:20:10,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:10,862 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4737 transitions.
[2022-02-09 02:20:10,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4737 transitions.
[2022-02-09 02:20:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:10,864 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:10,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:10,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548
[2022-02-09 02:20:10,864 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:10,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:10,864 INFO L85 PathProgramCache]: Analyzing trace with hash 44704435, now seen corresponding path program 545 times
[2022-02-09 02:20:10,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:10,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434289683]
[2022-02-09 02:20:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:10,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:10,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:10,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434289683]
[2022-02-09 02:20:10,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434289683] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:10,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:10,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:10,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37350475]
[2022-02-09 02:20:10,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:10,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:10,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:10,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:10,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:10,983 INFO L87 Difference]: Start difference. First operand 1222 states and 4737 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:11,083 INFO L93 Difference]: Finished difference Result 2243 states and 8209 transitions.
[2022-02-09 02:20:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:11,089 INFO L225 Difference]: With dead ends: 2243
[2022-02-09 02:20:11,089 INFO L226 Difference]: Without dead ends: 2060
[2022-02-09 02:20:11,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:11,090 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:11,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:11,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states.
[2022-02-09 02:20:11,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1246.
[2022-02-09 02:20:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.865863453815261) internal successors, (4813), 1245 states have internal predecessors, (4813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4813 transitions.
[2022-02-09 02:20:11,112 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4813 transitions. Word has length 25
[2022-02-09 02:20:11,112 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:11,112 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4813 transitions.
[2022-02-09 02:20:11,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4813 transitions.
[2022-02-09 02:20:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:11,114 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:11,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:11,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549
[2022-02-09 02:20:11,114 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1998632559, now seen corresponding path program 546 times
[2022-02-09 02:20:11,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:11,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188388479]
[2022-02-09 02:20:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:11,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:11,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:11,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188388479]
[2022-02-09 02:20:11,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188388479] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:11,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:11,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:11,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274678909]
[2022-02-09 02:20:11,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:11,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:11,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:11,236 INFO L87 Difference]: Start difference. First operand 1246 states and 4813 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:11,342 INFO L93 Difference]: Finished difference Result 2059 states and 7596 transitions.
[2022-02-09 02:20:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:11,346 INFO L225 Difference]: With dead ends: 2059
[2022-02-09 02:20:11,346 INFO L226 Difference]: Without dead ends: 1852
[2022-02-09 02:20:11,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:11,346 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 84 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:11,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states.
[2022-02-09 02:20:11,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1214.
[2022-02-09 02:20:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 3.8854080791426218) internal successors, (4713), 1213 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4713 transitions.
[2022-02-09 02:20:11,366 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4713 transitions. Word has length 25
[2022-02-09 02:20:11,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:11,366 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4713 transitions.
[2022-02-09 02:20:11,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4713 transitions.
[2022-02-09 02:20:11,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:11,368 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:11,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:11,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550
[2022-02-09 02:20:11,368 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1595897621, now seen corresponding path program 547 times
[2022-02-09 02:20:11,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:11,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625227789]
[2022-02-09 02:20:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:11,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:11,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:11,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625227789]
[2022-02-09 02:20:11,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625227789] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:11,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:11,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:11,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041696948]
[2022-02-09 02:20:11,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:11,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:11,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:11,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:11,485 INFO L87 Difference]: Start difference. First operand 1214 states and 4713 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:11,591 INFO L93 Difference]: Finished difference Result 2479 states and 9008 transitions.
[2022-02-09 02:20:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:11,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:11,596 INFO L225 Difference]: With dead ends: 2479
[2022-02-09 02:20:11,596 INFO L226 Difference]: Without dead ends: 2290
[2022-02-09 02:20:11,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:11,596 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:11,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:11,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states.
[2022-02-09 02:20:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1254.
[2022-02-09 02:20:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 3.8762968874700716) internal successors, (4857), 1253 states have internal predecessors, (4857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 4857 transitions.
[2022-02-09 02:20:11,617 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 4857 transitions. Word has length 25
[2022-02-09 02:20:11,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:11,617 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 4857 transitions.
[2022-02-09 02:20:11,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 4857 transitions.
[2022-02-09 02:20:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:11,619 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:11,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:11,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551
[2022-02-09 02:20:11,619 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 203753075, now seen corresponding path program 548 times
[2022-02-09 02:20:11,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:11,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769655521]
[2022-02-09 02:20:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:11,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:11,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:11,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769655521]
[2022-02-09 02:20:11,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769655521] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:11,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:11,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:11,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358702516]
[2022-02-09 02:20:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:11,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:11,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:11,736 INFO L87 Difference]: Start difference. First operand 1254 states and 4857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:11,838 INFO L93 Difference]: Finished difference Result 2473 states and 8963 transitions.
[2022-02-09 02:20:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:11,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:11,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:11,843 INFO L225 Difference]: With dead ends: 2473
[2022-02-09 02:20:11,843 INFO L226 Difference]: Without dead ends: 2262
[2022-02-09 02:20:11,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:11,844 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:11,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 140 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states.
[2022-02-09 02:20:11,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1226.
[2022-02-09 02:20:11,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.883265306122449) internal successors, (4757), 1225 states have internal predecessors, (4757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4757 transitions.
[2022-02-09 02:20:11,864 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4757 transitions. Word has length 25
[2022-02-09 02:20:11,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:11,865 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4757 transitions.
[2022-02-09 02:20:11,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:11,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4757 transitions.
[2022-02-09 02:20:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:11,866 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:11,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:11,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552
[2022-02-09 02:20:11,867 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:11,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash 749100659, now seen corresponding path program 549 times
[2022-02-09 02:20:11,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:11,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761747669]
[2022-02-09 02:20:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:11,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:11,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:11,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761747669]
[2022-02-09 02:20:11,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761747669] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:11,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:11,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:11,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17666504]
[2022-02-09 02:20:11,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:11,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:11,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:11,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:11,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:11,985 INFO L87 Difference]: Start difference. First operand 1226 states and 4757 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:12,091 INFO L93 Difference]: Finished difference Result 2381 states and 8631 transitions.
[2022-02-09 02:20:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:12,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:12,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:12,097 INFO L225 Difference]: With dead ends: 2381
[2022-02-09 02:20:12,097 INFO L226 Difference]: Without dead ends: 2192
[2022-02-09 02:20:12,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:12,097 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:12,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 141 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states.
[2022-02-09 02:20:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 1250.
[2022-02-09 02:20:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.8694955964771816) internal successors, (4833), 1249 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4833 transitions.
[2022-02-09 02:20:12,135 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4833 transitions. Word has length 25
[2022-02-09 02:20:12,135 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:12,136 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4833 transitions.
[2022-02-09 02:20:12,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4833 transitions.
[2022-02-09 02:20:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:12,137 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:12,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:12,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553
[2022-02-09 02:20:12,138 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:12,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:12,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1702207757, now seen corresponding path program 550 times
[2022-02-09 02:20:12,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:12,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393670285]
[2022-02-09 02:20:12,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:12,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:12,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:12,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393670285]
[2022-02-09 02:20:12,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393670285] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:12,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:12,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:12,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607303996]
[2022-02-09 02:20:12,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:12,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:12,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:12,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:12,255 INFO L87 Difference]: Start difference. First operand 1250 states and 4833 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:12,355 INFO L93 Difference]: Finished difference Result 2239 states and 8177 transitions.
[2022-02-09 02:20:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:12,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:12,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:12,360 INFO L225 Difference]: With dead ends: 2239
[2022-02-09 02:20:12,360 INFO L226 Difference]: Without dead ends: 2040
[2022-02-09 02:20:12,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:12,360 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:12,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states.
[2022-02-09 02:20:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1226.
[2022-02-09 02:20:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.873469387755102) internal successors, (4745), 1225 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4745 transitions.
[2022-02-09 02:20:12,387 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4745 transitions. Word has length 25
[2022-02-09 02:20:12,387 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:12,387 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4745 transitions.
[2022-02-09 02:20:12,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4745 transitions.
[2022-02-09 02:20:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:12,389 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:12,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:12,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554
[2022-02-09 02:20:12,389 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1113358033, now seen corresponding path program 551 times
[2022-02-09 02:20:12,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:12,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086413358]
[2022-02-09 02:20:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:12,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:12,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:12,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086413358]
[2022-02-09 02:20:12,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086413358] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:12,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:12,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:12,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102163530]
[2022-02-09 02:20:12,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:12,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:12,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:12,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:12,504 INFO L87 Difference]: Start difference. First operand 1226 states and 4745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:12,603 INFO L93 Difference]: Finished difference Result 2247 states and 8217 transitions.
[2022-02-09 02:20:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:12,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:12,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:12,607 INFO L225 Difference]: With dead ends: 2247
[2022-02-09 02:20:12,607 INFO L226 Difference]: Without dead ends: 2064
[2022-02-09 02:20:12,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:12,608 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:12,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states.
[2022-02-09 02:20:12,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1250.
[2022-02-09 02:20:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.8598879103282626) internal successors, (4821), 1249 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4821 transitions.
[2022-02-09 02:20:12,627 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4821 transitions. Word has length 25
[2022-02-09 02:20:12,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:12,627 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4821 transitions.
[2022-02-09 02:20:12,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4821 transitions.
[2022-02-09 02:20:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:12,629 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:12,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:12,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555
[2022-02-09 02:20:12,629 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:12,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2100546637, now seen corresponding path program 552 times
[2022-02-09 02:20:12,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:12,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454961063]
[2022-02-09 02:20:12,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:12,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:12,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:12,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454961063]
[2022-02-09 02:20:12,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454961063] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:12,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:12,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:12,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324235247]
[2022-02-09 02:20:12,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:12,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:12,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:12,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:12,745 INFO L87 Difference]: Start difference. First operand 1250 states and 4821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:12,844 INFO L93 Difference]: Finished difference Result 2063 states and 7604 transitions.
[2022-02-09 02:20:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:12,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:12,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:12,848 INFO L225 Difference]: With dead ends: 2063
[2022-02-09 02:20:12,848 INFO L226 Difference]: Without dead ends: 1848
[2022-02-09 02:20:12,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:12,848 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:12,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 146 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states.
[2022-02-09 02:20:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1210.
[2022-02-09 02:20:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.889991728701406) internal successors, (4703), 1209 states have internal predecessors, (4703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4703 transitions.
[2022-02-09 02:20:12,867 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4703 transitions. Word has length 25
[2022-02-09 02:20:12,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:12,867 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4703 transitions.
[2022-02-09 02:20:12,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4703 transitions.
[2022-02-09 02:20:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:12,869 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:12,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:12,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556
[2022-02-09 02:20:12,869 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:12,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2045368683, now seen corresponding path program 553 times
[2022-02-09 02:20:12,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:12,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861775602]
[2022-02-09 02:20:12,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:12,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:12,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:12,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861775602]
[2022-02-09 02:20:12,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861775602] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:12,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:12,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:12,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813560406]
[2022-02-09 02:20:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:12,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:12,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:12,987 INFO L87 Difference]: Start difference. First operand 1210 states and 4703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:13,083 INFO L93 Difference]: Finished difference Result 2385 states and 8635 transitions.
[2022-02-09 02:20:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:13,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:13,088 INFO L225 Difference]: With dead ends: 2385
[2022-02-09 02:20:13,088 INFO L226 Difference]: Without dead ends: 2226
[2022-02-09 02:20:13,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:13,088 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:13,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 141 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states.
[2022-02-09 02:20:13,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1226.
[2022-02-09 02:20:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.8783673469387754) internal successors, (4751), 1225 states have internal predecessors, (4751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4751 transitions.
[2022-02-09 02:20:13,114 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4751 transitions. Word has length 25
[2022-02-09 02:20:13,114 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:13,114 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4751 transitions.
[2022-02-09 02:20:13,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4751 transitions.
[2022-02-09 02:20:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:13,116 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:13,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:13,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557
[2022-02-09 02:20:13,116 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1037070699, now seen corresponding path program 554 times
[2022-02-09 02:20:13,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:13,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408547131]
[2022-02-09 02:20:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:13,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:13,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:13,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408547131]
[2022-02-09 02:20:13,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408547131] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:13,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:13,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:13,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387771812]
[2022-02-09 02:20:13,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:13,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:13,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:13,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:13,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:13,237 INFO L87 Difference]: Start difference. First operand 1226 states and 4751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:13,351 INFO L93 Difference]: Finished difference Result 2413 states and 8723 transitions.
[2022-02-09 02:20:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:13,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:13,357 INFO L225 Difference]: With dead ends: 2413
[2022-02-09 02:20:13,357 INFO L226 Difference]: Without dead ends: 2210
[2022-02-09 02:20:13,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:13,357 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:13,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states.
[2022-02-09 02:20:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1210.
[2022-02-09 02:20:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.8833746898263026) internal successors, (4695), 1209 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4695 transitions.
[2022-02-09 02:20:13,377 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4695 transitions. Word has length 25
[2022-02-09 02:20:13,377 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:13,377 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4695 transitions.
[2022-02-09 02:20:13,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4695 transitions.
[2022-02-09 02:20:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:13,379 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:13,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:13,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558
[2022-02-09 02:20:13,379 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:13,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:13,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1402801651, now seen corresponding path program 555 times
[2022-02-09 02:20:13,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:13,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908418947]
[2022-02-09 02:20:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:13,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:13,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:13,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908418947]
[2022-02-09 02:20:13,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908418947] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:13,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:13,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:13,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201148997]
[2022-02-09 02:20:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:13,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:13,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:13,499 INFO L87 Difference]: Start difference. First operand 1210 states and 4695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:13,589 INFO L93 Difference]: Finished difference Result 2381 states and 8615 transitions.
[2022-02-09 02:20:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:13,594 INFO L225 Difference]: With dead ends: 2381
[2022-02-09 02:20:13,594 INFO L226 Difference]: Without dead ends: 2222
[2022-02-09 02:20:13,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:13,594 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 132 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:13,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 126 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:13,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states.
[2022-02-09 02:20:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1226.
[2022-02-09 02:20:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.8718367346938773) internal successors, (4743), 1225 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4743 transitions.
[2022-02-09 02:20:13,616 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4743 transitions. Word has length 25
[2022-02-09 02:20:13,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:13,617 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4743 transitions.
[2022-02-09 02:20:13,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4743 transitions.
[2022-02-09 02:20:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:13,618 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:13,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:13,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559
[2022-02-09 02:20:13,619 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1372941973, now seen corresponding path program 556 times
[2022-02-09 02:20:13,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:13,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110997301]
[2022-02-09 02:20:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:13,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:13,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:13,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110997301]
[2022-02-09 02:20:13,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110997301] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:13,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:13,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:13,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278426038]
[2022-02-09 02:20:13,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:13,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:13,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:13,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:13,738 INFO L87 Difference]: Start difference. First operand 1226 states and 4743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:13,847 INFO L93 Difference]: Finished difference Result 2405 states and 8691 transitions.
[2022-02-09 02:20:13,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:13,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:13,853 INFO L225 Difference]: With dead ends: 2405
[2022-02-09 02:20:13,853 INFO L226 Difference]: Without dead ends: 2206
[2022-02-09 02:20:13,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:13,853 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:13,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 140 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:13,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states.
[2022-02-09 02:20:13,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1210.
[2022-02-09 02:20:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.876757650951199) internal successors, (4687), 1209 states have internal predecessors, (4687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4687 transitions.
[2022-02-09 02:20:13,874 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4687 transitions. Word has length 25
[2022-02-09 02:20:13,874 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:13,874 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4687 transitions.
[2022-02-09 02:20:13,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:13,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4687 transitions.
[2022-02-09 02:20:13,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:13,876 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:13,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:13,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560
[2022-02-09 02:20:13,876 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash -987502955, now seen corresponding path program 557 times
[2022-02-09 02:20:13,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:13,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482059182]
[2022-02-09 02:20:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:13,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:13,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:13,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482059182]
[2022-02-09 02:20:13,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482059182] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:13,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:13,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:13,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857228559]
[2022-02-09 02:20:13,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:13,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:13,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:13,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:13,996 INFO L87 Difference]: Start difference. First operand 1210 states and 4687 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:14,105 INFO L93 Difference]: Finished difference Result 2449 states and 8867 transitions.
[2022-02-09 02:20:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:14,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:14,110 INFO L225 Difference]: With dead ends: 2449
[2022-02-09 02:20:14,110 INFO L226 Difference]: Without dead ends: 2262
[2022-02-09 02:20:14,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:14,111 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:14,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 149 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states.
[2022-02-09 02:20:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1238.
[2022-02-09 02:20:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.860145513338723) internal successors, (4775), 1237 states have internal predecessors, (4775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4775 transitions.
[2022-02-09 02:20:14,131 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4775 transitions. Word has length 25
[2022-02-09 02:20:14,131 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:14,131 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4775 transitions.
[2022-02-09 02:20:14,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4775 transitions.
[2022-02-09 02:20:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:14,133 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:14,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:14,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561
[2022-02-09 02:20:14,134 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1264127347, now seen corresponding path program 558 times
[2022-02-09 02:20:14,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:14,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57127887]
[2022-02-09 02:20:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:14,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:14,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:14,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57127887]
[2022-02-09 02:20:14,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57127887] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:14,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:14,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:14,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373834245]
[2022-02-09 02:20:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:14,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:14,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:14,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:14,253 INFO L87 Difference]: Start difference. First operand 1238 states and 4775 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:14,353 INFO L93 Difference]: Finished difference Result 2445 states and 8827 transitions.
[2022-02-09 02:20:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:14,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:14,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:14,358 INFO L225 Difference]: With dead ends: 2445
[2022-02-09 02:20:14,358 INFO L226 Difference]: Without dead ends: 2226
[2022-02-09 02:20:14,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:14,359 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 124 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:14,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 128 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states.
[2022-02-09 02:20:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1202.
[2022-02-09 02:20:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.8825978351373855) internal successors, (4663), 1201 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4663 transitions.
[2022-02-09 02:20:14,378 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4663 transitions. Word has length 25
[2022-02-09 02:20:14,378 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:14,379 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4663 transitions.
[2022-02-09 02:20:14,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4663 transitions.
[2022-02-09 02:20:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:14,380 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:14,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:14,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562
[2022-02-09 02:20:14,381 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash 226537075, now seen corresponding path program 559 times
[2022-02-09 02:20:14,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:14,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809554649]
[2022-02-09 02:20:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:14,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:14,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:14,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809554649]
[2022-02-09 02:20:14,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809554649] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:14,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:14,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:14,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080489591]
[2022-02-09 02:20:14,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:14,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:14,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:14,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:14,508 INFO L87 Difference]: Start difference. First operand 1202 states and 4663 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:14,601 INFO L93 Difference]: Finished difference Result 2349 states and 8487 transitions.
[2022-02-09 02:20:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:14,606 INFO L225 Difference]: With dead ends: 2349
[2022-02-09 02:20:14,606 INFO L226 Difference]: Without dead ends: 2190
[2022-02-09 02:20:14,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:14,607 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:14,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states.
[2022-02-09 02:20:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1202.
[2022-02-09 02:20:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.869275603663614) internal successors, (4647), 1201 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4647 transitions.
[2022-02-09 02:20:14,627 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4647 transitions. Word has length 25
[2022-02-09 02:20:14,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:14,627 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4647 transitions.
[2022-02-09 02:20:14,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4647 transitions.
[2022-02-09 02:20:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:14,629 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:14,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:14,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563
[2022-02-09 02:20:14,629 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1234835059, now seen corresponding path program 560 times
[2022-02-09 02:20:14,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:14,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521063607]
[2022-02-09 02:20:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:14,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:14,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:14,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521063607]
[2022-02-09 02:20:14,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521063607] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:14,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:14,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:14,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333939471]
[2022-02-09 02:20:14,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:14,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:14,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:14,746 INFO L87 Difference]: Start difference. First operand 1202 states and 4647 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:14,848 INFO L93 Difference]: Finished difference Result 2377 states and 8575 transitions.
[2022-02-09 02:20:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:14,854 INFO L225 Difference]: With dead ends: 2377
[2022-02-09 02:20:14,854 INFO L226 Difference]: Without dead ends: 2174
[2022-02-09 02:20:14,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:14,854 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 117 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:14,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 143 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:14,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states.
[2022-02-09 02:20:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1186.
[2022-02-09 02:20:14,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1185 states have (on average 3.8742616033755275) internal successors, (4591), 1185 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4591 transitions.
[2022-02-09 02:20:14,875 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4591 transitions. Word has length 25
[2022-02-09 02:20:14,876 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:14,876 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4591 transitions.
[2022-02-09 02:20:14,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4591 transitions.
[2022-02-09 02:20:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:14,877 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:14,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:14,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564
[2022-02-09 02:20:14,878 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash -569489805, now seen corresponding path program 561 times
[2022-02-09 02:20:14,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:14,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510782265]
[2022-02-09 02:20:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:14,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:14,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:14,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510782265]
[2022-02-09 02:20:14,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510782265] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:14,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:14,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:14,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562827442]
[2022-02-09 02:20:14,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:14,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:14,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:14,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:14,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:14,997 INFO L87 Difference]: Start difference. First operand 1186 states and 4591 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:15,090 INFO L93 Difference]: Finished difference Result 2305 states and 8327 transitions.
[2022-02-09 02:20:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:15,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:15,095 INFO L225 Difference]: With dead ends: 2305
[2022-02-09 02:20:15,095 INFO L226 Difference]: Without dead ends: 2146
[2022-02-09 02:20:15,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:15,095 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:15,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 138 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states.
[2022-02-09 02:20:15,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1202.
[2022-02-09 02:20:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.8626144879267277) internal successors, (4639), 1201 states have internal predecessors, (4639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4639 transitions.
[2022-02-09 02:20:15,115 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4639 transitions. Word has length 25
[2022-02-09 02:20:15,116 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:15,116 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4639 transitions.
[2022-02-09 02:20:15,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4639 transitions.
[2022-02-09 02:20:15,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:15,117 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:15,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:15,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565
[2022-02-09 02:20:15,118 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:15,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:15,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1215021419, now seen corresponding path program 562 times
[2022-02-09 02:20:15,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:15,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902402521]
[2022-02-09 02:20:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:15,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:15,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:15,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902402521]
[2022-02-09 02:20:15,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902402521] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:15,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:15,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:15,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128097260]
[2022-02-09 02:20:15,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:15,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:15,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:15,236 INFO L87 Difference]: Start difference. First operand 1202 states and 4639 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:15,339 INFO L93 Difference]: Finished difference Result 2193 states and 7990 transitions.
[2022-02-09 02:20:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:15,344 INFO L225 Difference]: With dead ends: 2193
[2022-02-09 02:20:15,344 INFO L226 Difference]: Without dead ends: 2002
[2022-02-09 02:20:15,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:15,344 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:15,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 146 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:15,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states.
[2022-02-09 02:20:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1186.
[2022-02-09 02:20:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1185 states have (on average 3.8675105485232066) internal successors, (4583), 1185 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4583 transitions.
[2022-02-09 02:20:15,364 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4583 transitions. Word has length 25
[2022-02-09 02:20:15,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:15,364 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4583 transitions.
[2022-02-09 02:20:15,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4583 transitions.
[2022-02-09 02:20:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:15,366 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:15,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:15,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566
[2022-02-09 02:20:15,366 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:15,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash 47302293, now seen corresponding path program 563 times
[2022-02-09 02:20:15,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:15,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242461151]
[2022-02-09 02:20:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:15,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:15,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:15,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242461151]
[2022-02-09 02:20:15,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242461151] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:15,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:15,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:15,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958022789]
[2022-02-09 02:20:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:15,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:15,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:15,483 INFO L87 Difference]: Start difference. First operand 1186 states and 4583 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:15,592 INFO L93 Difference]: Finished difference Result 2341 states and 8459 transitions.
[2022-02-09 02:20:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:15,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:15,597 INFO L225 Difference]: With dead ends: 2341
[2022-02-09 02:20:15,597 INFO L226 Difference]: Without dead ends: 2154
[2022-02-09 02:20:15,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:15,598 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 100 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:15,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 149 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:15,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states.
[2022-02-09 02:20:15,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1210.
[2022-02-09 02:20:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.8535980148883375) internal successors, (4659), 1209 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4659 transitions.
[2022-02-09 02:20:15,619 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4659 transitions. Word has length 25
[2022-02-09 02:20:15,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:15,619 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4659 transitions.
[2022-02-09 02:20:15,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4659 transitions.
[2022-02-09 02:20:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:15,621 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:15,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:15,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567
[2022-02-09 02:20:15,621 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:15,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1344842253, now seen corresponding path program 564 times
[2022-02-09 02:20:15,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:15,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11259968]
[2022-02-09 02:20:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:15,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:15,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:15,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11259968]
[2022-02-09 02:20:15,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11259968] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:15,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:15,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:15,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914915618]
[2022-02-09 02:20:15,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:15,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:15,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:15,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:15,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:15,740 INFO L87 Difference]: Start difference. First operand 1210 states and 4659 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:15,857 INFO L93 Difference]: Finished difference Result 2201 states and 8010 transitions.
[2022-02-09 02:20:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:15,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:15,862 INFO L225 Difference]: With dead ends: 2201
[2022-02-09 02:20:15,862 INFO L226 Difference]: Without dead ends: 1994
[2022-02-09 02:20:15,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:15,862 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 87 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:15,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 167 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states.
[2022-02-09 02:20:15,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1178.
[2022-02-09 02:20:15,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1177 states have (on average 3.873406966864911) internal successors, (4559), 1177 states have internal predecessors, (4559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4559 transitions.
[2022-02-09 02:20:15,882 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4559 transitions. Word has length 25
[2022-02-09 02:20:15,882 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:15,882 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4559 transitions.
[2022-02-09 02:20:15,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4559 transitions.
[2022-02-09 02:20:15,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:15,884 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:15,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:15,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568
[2022-02-09 02:20:15,884 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -630210991, now seen corresponding path program 565 times
[2022-02-09 02:20:15,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:15,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133146470]
[2022-02-09 02:20:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:15,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:16,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:16,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133146470]
[2022-02-09 02:20:16,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133146470] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:16,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:16,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:16,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953377783]
[2022-02-09 02:20:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:16,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:16,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:16,005 INFO L87 Difference]: Start difference. First operand 1178 states and 4559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:16,109 INFO L93 Difference]: Finished difference Result 2285 states and 8247 transitions.
[2022-02-09 02:20:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:16,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:16,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:16,114 INFO L225 Difference]: With dead ends: 2285
[2022-02-09 02:20:16,114 INFO L226 Difference]: Without dead ends: 2126
[2022-02-09 02:20:16,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:16,114 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:16,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states.
[2022-02-09 02:20:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 1178.
[2022-02-09 02:20:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1177 states have (on average 3.8598130841121496) internal successors, (4543), 1177 states have internal predecessors, (4543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4543 transitions.
[2022-02-09 02:20:16,134 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4543 transitions. Word has length 25
[2022-02-09 02:20:16,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:16,134 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4543 transitions.
[2022-02-09 02:20:16,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4543 transitions.
[2022-02-09 02:20:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:16,136 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:16,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:16,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569
[2022-02-09 02:20:16,136 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:16,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:16,136 INFO L85 PathProgramCache]: Analyzing trace with hash -660070669, now seen corresponding path program 566 times
[2022-02-09 02:20:16,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:16,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458905033]
[2022-02-09 02:20:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:16,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:16,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:16,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458905033]
[2022-02-09 02:20:16,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458905033] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:16,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:16,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:16,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724459096]
[2022-02-09 02:20:16,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:16,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:16,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:16,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:16,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:16,257 INFO L87 Difference]: Start difference. First operand 1178 states and 4543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:16,366 INFO L93 Difference]: Finished difference Result 2309 states and 8323 transitions.
[2022-02-09 02:20:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:16,371 INFO L225 Difference]: With dead ends: 2309
[2022-02-09 02:20:16,371 INFO L226 Difference]: Without dead ends: 2110
[2022-02-09 02:20:16,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:16,372 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:16,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 148 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states.
[2022-02-09 02:20:16,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1162.
[2022-02-09 02:20:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1161 states have (on average 3.8647717484926787) internal successors, (4487), 1161 states have internal predecessors, (4487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 4487 transitions.
[2022-02-09 02:20:16,392 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 4487 transitions. Word has length 25
[2022-02-09 02:20:16,392 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:16,392 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 4487 transitions.
[2022-02-09 02:20:16,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 4487 transitions.
[2022-02-09 02:20:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:16,394 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:16,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:16,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570
[2022-02-09 02:20:16,394 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1111113037, now seen corresponding path program 567 times
[2022-02-09 02:20:16,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:16,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195541933]
[2022-02-09 02:20:16,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:16,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:16,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:16,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195541933]
[2022-02-09 02:20:16,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195541933] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:16,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:16,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:16,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727103848]
[2022-02-09 02:20:16,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:16,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:16,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:16,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:16,518 INFO L87 Difference]: Start difference. First operand 1162 states and 4487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:16,608 INFO L93 Difference]: Finished difference Result 2229 states and 8035 transitions.
[2022-02-09 02:20:16,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:16,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:16,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:16,614 INFO L225 Difference]: With dead ends: 2229
[2022-02-09 02:20:16,614 INFO L226 Difference]: Without dead ends: 2070
[2022-02-09 02:20:16,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:16,614 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 140 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:16,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 129 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states.
[2022-02-09 02:20:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1130.
[2022-02-09 02:20:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 3.8609388839681134) internal successors, (4359), 1129 states have internal predecessors, (4359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4359 transitions.
[2022-02-09 02:20:16,635 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4359 transitions. Word has length 25
[2022-02-09 02:20:16,635 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:16,635 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4359 transitions.
[2022-02-09 02:20:16,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4359 transitions.
[2022-02-09 02:20:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:16,637 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:16,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:16,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571
[2022-02-09 02:20:16,637 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:16,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1056884339, now seen corresponding path program 568 times
[2022-02-09 02:20:16,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:16,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360271431]
[2022-02-09 02:20:16,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:16,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:16,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:16,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360271431]
[2022-02-09 02:20:16,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360271431] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:16,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:16,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:16,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051693467]
[2022-02-09 02:20:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:16,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:16,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:16,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:16,765 INFO L87 Difference]: Start difference. First operand 1130 states and 4359 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:16,881 INFO L93 Difference]: Finished difference Result 2117 states and 7698 transitions.
[2022-02-09 02:20:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:16,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:16,886 INFO L225 Difference]: With dead ends: 2117
[2022-02-09 02:20:16,886 INFO L226 Difference]: Without dead ends: 1926
[2022-02-09 02:20:16,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:16,886 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:16,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 139 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states.
[2022-02-09 02:20:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1114.
[2022-02-09 02:20:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.866127583108715) internal successors, (4303), 1113 states have internal predecessors, (4303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4303 transitions.
[2022-02-09 02:20:16,904 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4303 transitions. Word has length 25
[2022-02-09 02:20:16,904 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:16,904 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4303 transitions.
[2022-02-09 02:20:16,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4303 transitions.
[2022-02-09 02:20:16,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:16,906 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:16,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:16,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572
[2022-02-09 02:20:16,906 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:16,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1754306197, now seen corresponding path program 569 times
[2022-02-09 02:20:16,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:16,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877193828]
[2022-02-09 02:20:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:16,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:17,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:17,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877193828]
[2022-02-09 02:20:17,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877193828] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:17,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:17,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:17,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458571138]
[2022-02-09 02:20:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:17,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:17,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:17,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:17,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:17,024 INFO L87 Difference]: Start difference. First operand 1114 states and 4303 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:17,131 INFO L93 Difference]: Finished difference Result 2133 states and 7770 transitions.
[2022-02-09 02:20:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:17,136 INFO L225 Difference]: With dead ends: 2133
[2022-02-09 02:20:17,136 INFO L226 Difference]: Without dead ends: 1950
[2022-02-09 02:20:17,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:17,136 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:17,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 158 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states.
[2022-02-09 02:20:17,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1138.
[2022-02-09 02:20:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.851363236587511) internal successors, (4379), 1137 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4379 transitions.
[2022-02-09 02:20:17,155 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4379 transitions. Word has length 25
[2022-02-09 02:20:17,155 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:17,155 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4379 transitions.
[2022-02-09 02:20:17,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4379 transitions.
[2022-02-09 02:20:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:17,157 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:17,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:17,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573
[2022-02-09 02:20:17,157 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash -289030797, now seen corresponding path program 570 times
[2022-02-09 02:20:17,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:17,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901997312]
[2022-02-09 02:20:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:17,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:17,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:17,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901997312]
[2022-02-09 02:20:17,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901997312] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:17,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:17,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:17,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657931359]
[2022-02-09 02:20:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:17,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:17,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:17,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:17,275 INFO L87 Difference]: Start difference. First operand 1138 states and 4379 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:17,380 INFO L93 Difference]: Finished difference Result 1949 states and 7157 transitions.
[2022-02-09 02:20:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:17,384 INFO L225 Difference]: With dead ends: 1949
[2022-02-09 02:20:17,384 INFO L226 Difference]: Without dead ends: 1742
[2022-02-09 02:20:17,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:17,384 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:17,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states.
[2022-02-09 02:20:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1106.
[2022-02-09 02:20:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 3.872398190045249) internal successors, (4279), 1105 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 4279 transitions.
[2022-02-09 02:20:17,402 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 4279 transitions. Word has length 25
[2022-02-09 02:20:17,402 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 4279 transitions.
[2022-02-09 02:20:17,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 4279 transitions.
[2022-02-09 02:20:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:17,404 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:17,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:17,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574
[2022-02-09 02:20:17,404 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1300549995, now seen corresponding path program 571 times
[2022-02-09 02:20:17,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:17,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865774328]
[2022-02-09 02:20:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:17,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:17,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:17,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865774328]
[2022-02-09 02:20:17,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865774328] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:17,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:17,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:17,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297146449]
[2022-02-09 02:20:17,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:17,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:17,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:17,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:17,520 INFO L87 Difference]: Start difference. First operand 1106 states and 4279 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:17,618 INFO L93 Difference]: Finished difference Result 2181 states and 7970 transitions.
[2022-02-09 02:20:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:17,623 INFO L225 Difference]: With dead ends: 2181
[2022-02-09 02:20:17,623 INFO L226 Difference]: Without dead ends: 1994
[2022-02-09 02:20:17,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:17,623 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:17,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 134 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states.
[2022-02-09 02:20:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1146.
[2022-02-09 02:20:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 3.862882096069869) internal successors, (4423), 1145 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4423 transitions.
[2022-02-09 02:20:17,642 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4423 transitions. Word has length 25
[2022-02-09 02:20:17,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:17,642 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4423 transitions.
[2022-02-09 02:20:17,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4423 transitions.
[2022-02-09 02:20:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:17,644 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:17,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:17,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575
[2022-02-09 02:20:17,644 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:17,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:17,644 INFO L85 PathProgramCache]: Analyzing trace with hash 951080307, now seen corresponding path program 572 times
[2022-02-09 02:20:17,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:17,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305286260]
[2022-02-09 02:20:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:17,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:17,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:17,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305286260]
[2022-02-09 02:20:17,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305286260] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:17,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:17,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:17,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819354145]
[2022-02-09 02:20:17,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:17,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:17,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:17,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:17,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:17,763 INFO L87 Difference]: Start difference. First operand 1146 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:17,861 INFO L93 Difference]: Finished difference Result 2177 states and 7930 transitions.
[2022-02-09 02:20:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:17,866 INFO L225 Difference]: With dead ends: 2177
[2022-02-09 02:20:17,866 INFO L226 Difference]: Without dead ends: 1966
[2022-02-09 02:20:17,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:17,866 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 107 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:17,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 138 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states.
[2022-02-09 02:20:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1118.
[2022-02-09 02:20:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 3.8701880035810206) internal successors, (4323), 1117 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4323 transitions.
[2022-02-09 02:20:17,885 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4323 transitions. Word has length 25
[2022-02-09 02:20:17,885 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:17,886 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4323 transitions.
[2022-02-09 02:20:17,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4323 transitions.
[2022-02-09 02:20:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:17,887 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:17,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:17,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576
[2022-02-09 02:20:17,887 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:17,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2147346957, now seen corresponding path program 573 times
[2022-02-09 02:20:17,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:17,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913704224]
[2022-02-09 02:20:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:17,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:18,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:18,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913704224]
[2022-02-09 02:20:18,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913704224] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:18,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:18,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:18,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545964714]
[2022-02-09 02:20:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:18,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:18,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:18,006 INFO L87 Difference]: Start difference. First operand 1118 states and 4323 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:18,109 INFO L93 Difference]: Finished difference Result 2093 states and 7626 transitions.
[2022-02-09 02:20:18,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:18,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:18,113 INFO L225 Difference]: With dead ends: 2093
[2022-02-09 02:20:18,113 INFO L226 Difference]: Without dead ends: 1906
[2022-02-09 02:20:18,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:18,114 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 97 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:18,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states.
[2022-02-09 02:20:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142.
[2022-02-09 02:20:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.855390008764242) internal successors, (4399), 1141 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4399 transitions.
[2022-02-09 02:20:18,132 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4399 transitions. Word has length 25
[2022-02-09 02:20:18,132 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:18,132 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4399 transitions.
[2022-02-09 02:20:18,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4399 transitions.
[2022-02-09 02:20:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:18,134 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:18,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:18,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577
[2022-02-09 02:20:18,134 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:18,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:18,134 INFO L85 PathProgramCache]: Analyzing trace with hash -954880525, now seen corresponding path program 574 times
[2022-02-09 02:20:18,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:18,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218769730]
[2022-02-09 02:20:18,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:18,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:18,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:18,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218769730]
[2022-02-09 02:20:18,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218769730] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:18,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:18,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:18,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704790509]
[2022-02-09 02:20:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:18,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:18,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:18,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:18,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:18,255 INFO L87 Difference]: Start difference. First operand 1142 states and 4399 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:18,348 INFO L93 Difference]: Finished difference Result 1953 states and 7177 transitions.
[2022-02-09 02:20:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:18,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:18,352 INFO L225 Difference]: With dead ends: 1953
[2022-02-09 02:20:18,352 INFO L226 Difference]: Without dead ends: 1754
[2022-02-09 02:20:18,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:18,353 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 105 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:18,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 128 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states.
[2022-02-09 02:20:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1118.
[2022-02-09 02:20:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 3.8594449418084156) internal successors, (4311), 1117 states have internal predecessors, (4311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4311 transitions.
[2022-02-09 02:20:18,370 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4311 transitions. Word has length 25
[2022-02-09 02:20:18,370 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:18,370 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4311 transitions.
[2022-02-09 02:20:18,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4311 transitions.
[2022-02-09 02:20:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:18,372 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:18,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:18,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578
[2022-02-09 02:20:18,372 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1164999343, now seen corresponding path program 575 times
[2022-02-09 02:20:18,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:18,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565664411]
[2022-02-09 02:20:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:18,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:18,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:18,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565664411]
[2022-02-09 02:20:18,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565664411] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:18,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:18,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:18,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310164494]
[2022-02-09 02:20:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:18,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:18,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:18,495 INFO L87 Difference]: Start difference. First operand 1118 states and 4311 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:18,597 INFO L93 Difference]: Finished difference Result 1881 states and 6913 transitions.
[2022-02-09 02:20:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:18,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:18,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:18,602 INFO L225 Difference]: With dead ends: 1881
[2022-02-09 02:20:18,602 INFO L226 Difference]: Without dead ends: 1698
[2022-02-09 02:20:18,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:18,602 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:18,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 139 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states.
[2022-02-09 02:20:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1142.
[2022-02-09 02:20:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.8448729184925505) internal successors, (4387), 1141 states have internal predecessors, (4387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4387 transitions.
[2022-02-09 02:20:18,622 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4387 transitions. Word has length 25
[2022-02-09 02:20:18,622 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:18,622 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4387 transitions.
[2022-02-09 02:20:18,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4387 transitions.
[2022-02-09 02:20:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:18,624 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:18,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:18,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579
[2022-02-09 02:20:18,624 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash -83936717, now seen corresponding path program 576 times
[2022-02-09 02:20:18,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:18,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925722136]
[2022-02-09 02:20:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:18,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:18,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:18,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925722136]
[2022-02-09 02:20:18,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925722136] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:18,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:18,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:18,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176868909]
[2022-02-09 02:20:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:18,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:18,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:18,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:18,750 INFO L87 Difference]: Start difference. First operand 1142 states and 4387 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:18,839 INFO L93 Difference]: Finished difference Result 1697 states and 6300 transitions.
[2022-02-09 02:20:18,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:18,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:18,843 INFO L225 Difference]: With dead ends: 1697
[2022-02-09 02:20:18,843 INFO L226 Difference]: Without dead ends: 1482
[2022-02-09 02:20:18,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:18,843 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 77 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:18,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 123 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states.
[2022-02-09 02:20:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1102.
[2022-02-09 02:20:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.877384196185286) internal successors, (4269), 1101 states have internal predecessors, (4269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4269 transitions.
[2022-02-09 02:20:18,860 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4269 transitions. Word has length 25
[2022-02-09 02:20:18,860 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:18,860 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4269 transitions.
[2022-02-09 02:20:18,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4269 transitions.
[2022-02-09 02:20:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:18,862 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:18,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:18,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580
[2022-02-09 02:20:18,862 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:18,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1629748617, now seen corresponding path program 577 times
[2022-02-09 02:20:18,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:18,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804566140]
[2022-02-09 02:20:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:18,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:18,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:18,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804566140]
[2022-02-09 02:20:18,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804566140] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:18,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:18,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:18,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079186750]
[2022-02-09 02:20:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:18,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:18,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:18,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:18,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:18,983 INFO L87 Difference]: Start difference. First operand 1102 states and 4269 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:19,084 INFO L93 Difference]: Finished difference Result 2267 states and 8325 transitions.
[2022-02-09 02:20:19,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:19,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:19,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:19,089 INFO L225 Difference]: With dead ends: 2267
[2022-02-09 02:20:19,089 INFO L226 Difference]: Without dead ends: 2078
[2022-02-09 02:20:19,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:19,090 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:19,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states.
[2022-02-09 02:20:19,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1152.
[2022-02-09 02:20:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 3.8731537793223283) internal successors, (4458), 1151 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 4458 transitions.
[2022-02-09 02:20:19,110 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 4458 transitions. Word has length 25
[2022-02-09 02:20:19,110 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:19,110 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 4458 transitions.
[2022-02-09 02:20:19,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 4458 transitions.
[2022-02-09 02:20:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:19,112 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:19,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:19,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581
[2022-02-09 02:20:19,112 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash 621881685, now seen corresponding path program 578 times
[2022-02-09 02:20:19,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:19,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531315204]
[2022-02-09 02:20:19,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:19,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:19,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:19,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531315204]
[2022-02-09 02:20:19,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531315204] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:19,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:19,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:19,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460080617]
[2022-02-09 02:20:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:19,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:19,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:19,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:19,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:19,235 INFO L87 Difference]: Start difference. First operand 1152 states and 4458 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:19,348 INFO L93 Difference]: Finished difference Result 2265 states and 8290 transitions.
[2022-02-09 02:20:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:19,353 INFO L225 Difference]: With dead ends: 2265
[2022-02-09 02:20:19,353 INFO L226 Difference]: Without dead ends: 2048
[2022-02-09 02:20:19,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:19,354 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:19,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 145 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states.
[2022-02-09 02:20:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1122.
[2022-02-09 02:20:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8813559322033897) internal successors, (4351), 1121 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4351 transitions.
[2022-02-09 02:20:19,374 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4351 transitions. Word has length 25
[2022-02-09 02:20:19,374 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:19,374 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4351 transitions.
[2022-02-09 02:20:19,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4351 transitions.
[2022-02-09 02:20:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:19,375 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:19,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:19,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582
[2022-02-09 02:20:19,376 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1818421717, now seen corresponding path program 579 times
[2022-02-09 02:20:19,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:19,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647979357]
[2022-02-09 02:20:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:19,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:19,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:19,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647979357]
[2022-02-09 02:20:19,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647979357] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:19,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:19,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:19,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944908069]
[2022-02-09 02:20:19,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:19,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:19,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:19,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:19,492 INFO L87 Difference]: Start difference. First operand 1122 states and 4351 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:19,595 INFO L93 Difference]: Finished difference Result 2261 states and 8292 transitions.
[2022-02-09 02:20:19,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:19,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:19,600 INFO L225 Difference]: With dead ends: 2261
[2022-02-09 02:20:19,600 INFO L226 Difference]: Without dead ends: 2072
[2022-02-09 02:20:19,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:19,600 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 94 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:19,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 146 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states.
[2022-02-09 02:20:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1150.
[2022-02-09 02:20:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.8633594429939078) internal successors, (4439), 1149 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4439 transitions.
[2022-02-09 02:20:19,619 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4439 transitions. Word has length 25
[2022-02-09 02:20:19,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:19,619 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4439 transitions.
[2022-02-09 02:20:19,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4439 transitions.
[2022-02-09 02:20:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:19,621 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:19,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:19,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583
[2022-02-09 02:20:19,621 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1284079147, now seen corresponding path program 580 times
[2022-02-09 02:20:19,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:19,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532399889]
[2022-02-09 02:20:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:19,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:19,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:19,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532399889]
[2022-02-09 02:20:19,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532399889] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:19,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:19,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:19,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665957993]
[2022-02-09 02:20:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:19,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:19,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:19,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:19,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:19,737 INFO L87 Difference]: Start difference. First operand 1150 states and 4439 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:19,833 INFO L93 Difference]: Finished difference Result 2255 states and 8247 transitions.
[2022-02-09 02:20:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:19,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:19,837 INFO L225 Difference]: With dead ends: 2255
[2022-02-09 02:20:19,837 INFO L226 Difference]: Without dead ends: 2044
[2022-02-09 02:20:19,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:19,838 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 112 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:19,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 126 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states.
[2022-02-09 02:20:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1122.
[2022-02-09 02:20:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8688670829616414) internal successors, (4337), 1121 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4337 transitions.
[2022-02-09 02:20:19,857 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4337 transitions. Word has length 25
[2022-02-09 02:20:19,857 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:19,857 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4337 transitions.
[2022-02-09 02:20:19,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:19,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4337 transitions.
[2022-02-09 02:20:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:19,859 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:19,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:19,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584
[2022-02-09 02:20:19,859 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:19,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:19,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1494197965, now seen corresponding path program 581 times
[2022-02-09 02:20:19,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:19,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713514018]
[2022-02-09 02:20:19,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:19,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:19,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:19,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713514018]
[2022-02-09 02:20:19,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713514018] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:19,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:19,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:19,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504595977]
[2022-02-09 02:20:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:19,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:19,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:19,976 INFO L87 Difference]: Start difference. First operand 1122 states and 4337 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:20,068 INFO L93 Difference]: Finished difference Result 2257 states and 8268 transitions.
[2022-02-09 02:20:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:20,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:20,073 INFO L225 Difference]: With dead ends: 2257
[2022-02-09 02:20:20,073 INFO L226 Difference]: Without dead ends: 2070
[2022-02-09 02:20:20,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:20,074 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 117 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:20,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 125 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states.
[2022-02-09 02:20:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1150.
[2022-02-09 02:20:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.8511749347258486) internal successors, (4425), 1149 states have internal predecessors, (4425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4425 transitions.
[2022-02-09 02:20:20,094 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4425 transitions. Word has length 25
[2022-02-09 02:20:20,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:20,094 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4425 transitions.
[2022-02-09 02:20:20,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4425 transitions.
[2022-02-09 02:20:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:20,095 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:20,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:20,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585
[2022-02-09 02:20:20,096 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:20,096 INFO L85 PathProgramCache]: Analyzing trace with hash -413135339, now seen corresponding path program 582 times
[2022-02-09 02:20:20,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:20,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708384284]
[2022-02-09 02:20:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:20,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:20,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:20,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708384284]
[2022-02-09 02:20:20,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708384284] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:20,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:20,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:20,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18031738]
[2022-02-09 02:20:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:20,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:20,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:20,213 INFO L87 Difference]: Start difference. First operand 1150 states and 4425 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:20,321 INFO L93 Difference]: Finished difference Result 2253 states and 8228 transitions.
[2022-02-09 02:20:20,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:20,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:20,326 INFO L225 Difference]: With dead ends: 2253
[2022-02-09 02:20:20,326 INFO L226 Difference]: Without dead ends: 2028
[2022-02-09 02:20:20,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:20,327 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 88 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:20,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 152 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:20,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states.
[2022-02-09 02:20:20,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1108.
[2022-02-09 02:20:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.878952122854562) internal successors, (4294), 1107 states have internal predecessors, (4294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4294 transitions.
[2022-02-09 02:20:20,346 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4294 transitions. Word has length 25
[2022-02-09 02:20:20,346 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:20,347 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4294 transitions.
[2022-02-09 02:20:20,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4294 transitions.
[2022-02-09 02:20:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:20,348 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:20,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:20,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586
[2022-02-09 02:20:20,348 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:20,349 INFO L85 PathProgramCache]: Analyzing trace with hash 642157141, now seen corresponding path program 583 times
[2022-02-09 02:20:20,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:20,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548110859]
[2022-02-09 02:20:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:20,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:20,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:20,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548110859]
[2022-02-09 02:20:20,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548110859] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:20,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:20,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:20,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117200720]
[2022-02-09 02:20:20,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:20,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:20,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:20,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:20,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:20,465 INFO L87 Difference]: Start difference. First operand 1108 states and 4294 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:20,565 INFO L93 Difference]: Finished difference Result 2223 states and 8131 transitions.
[2022-02-09 02:20:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:20,571 INFO L225 Difference]: With dead ends: 2223
[2022-02-09 02:20:20,571 INFO L226 Difference]: Without dead ends: 2034
[2022-02-09 02:20:20,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:20,571 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 111 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:20,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states.
[2022-02-09 02:20:20,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1150.
[2022-02-09 02:20:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.866840731070496) internal successors, (4443), 1149 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4443 transitions.
[2022-02-09 02:20:20,593 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4443 transitions. Word has length 25
[2022-02-09 02:20:20,593 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:20,593 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4443 transitions.
[2022-02-09 02:20:20,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4443 transitions.
[2022-02-09 02:20:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:20,595 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:20,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:20,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587
[2022-02-09 02:20:20,596 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:20,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1401179853, now seen corresponding path program 584 times
[2022-02-09 02:20:20,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:20,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12037177]
[2022-02-09 02:20:20,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:20,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:20,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:20,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12037177]
[2022-02-09 02:20:20,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12037177] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:20,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:20,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:20,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538270948]
[2022-02-09 02:20:20,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:20,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:20,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:20,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:20,739 INFO L87 Difference]: Start difference. First operand 1150 states and 4443 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:20,866 INFO L93 Difference]: Finished difference Result 2221 states and 8096 transitions.
[2022-02-09 02:20:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:20,873 INFO L225 Difference]: With dead ends: 2221
[2022-02-09 02:20:20,873 INFO L226 Difference]: Without dead ends: 2004
[2022-02-09 02:20:20,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:20,873 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 97 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:20,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 139 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:20,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states.
[2022-02-09 02:20:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1120.
[2022-02-09 02:20:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.876675603217158) internal successors, (4338), 1119 states have internal predecessors, (4338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4338 transitions.
[2022-02-09 02:20:20,900 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4338 transitions. Word has length 25
[2022-02-09 02:20:20,900 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:20,900 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4338 transitions.
[2022-02-09 02:20:20,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4338 transitions.
[2022-02-09 02:20:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:20,902 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:20,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:20,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588
[2022-02-09 02:20:20,903 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -153869739, now seen corresponding path program 585 times
[2022-02-09 02:20:20,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:20,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860815477]
[2022-02-09 02:20:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:20,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:21,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:21,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860815477]
[2022-02-09 02:20:21,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860815477] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:21,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:21,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:21,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975354236]
[2022-02-09 02:20:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:21,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:21,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:21,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:21,052 INFO L87 Difference]: Start difference. First operand 1120 states and 4338 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:21,153 INFO L93 Difference]: Finished difference Result 2143 states and 7835 transitions.
[2022-02-09 02:20:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:21,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:21,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:21,157 INFO L225 Difference]: With dead ends: 2143
[2022-02-09 02:20:21,157 INFO L226 Difference]: Without dead ends: 1954
[2022-02-09 02:20:21,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:21,158 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 121 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:21,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states.
[2022-02-09 02:20:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144.
[2022-02-09 02:20:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8617672790901136) internal successors, (4414), 1143 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4414 transitions.
[2022-02-09 02:20:21,176 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4414 transitions. Word has length 25
[2022-02-09 02:20:21,176 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:21,176 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4414 transitions.
[2022-02-09 02:20:21,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4414 transitions.
[2022-02-09 02:20:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:21,178 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:21,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:21,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589
[2022-02-09 02:20:21,178 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash 401918549, now seen corresponding path program 586 times
[2022-02-09 02:20:21,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:21,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802483440]
[2022-02-09 02:20:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:21,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:21,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:21,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802483440]
[2022-02-09 02:20:21,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802483440] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:21,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:21,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:21,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931740784]
[2022-02-09 02:20:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:21,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:21,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:21,296 INFO L87 Difference]: Start difference. First operand 1144 states and 4414 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:21,404 INFO L93 Difference]: Finished difference Result 2001 states and 7381 transitions.
[2022-02-09 02:20:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:21,408 INFO L225 Difference]: With dead ends: 2001
[2022-02-09 02:20:21,408 INFO L226 Difference]: Without dead ends: 1802
[2022-02-09 02:20:21,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:21,409 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 91 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:21,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 148 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:21,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states.
[2022-02-09 02:20:21,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1120.
[2022-02-09 02:20:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8659517426273458) internal successors, (4326), 1119 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions.
[2022-02-09 02:20:21,428 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25
[2022-02-09 02:20:21,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:21,428 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions.
[2022-02-09 02:20:21,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions.
[2022-02-09 02:20:21,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:21,430 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:21,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:21,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590
[2022-02-09 02:20:21,430 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash 828477875, now seen corresponding path program 587 times
[2022-02-09 02:20:21,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:21,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760867709]
[2022-02-09 02:20:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:21,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:21,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:21,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760867709]
[2022-02-09 02:20:21,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760867709] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:21,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:21,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:21,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133358638]
[2022-02-09 02:20:21,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:21,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:21,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:21,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:21,548 INFO L87 Difference]: Start difference. First operand 1120 states and 4326 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:21,644 INFO L93 Difference]: Finished difference Result 2141 states and 7818 transitions.
[2022-02-09 02:20:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:21,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:21,649 INFO L225 Difference]: With dead ends: 2141
[2022-02-09 02:20:21,649 INFO L226 Difference]: Without dead ends: 1954
[2022-02-09 02:20:21,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:21,650 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 103 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:21,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 134 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states.
[2022-02-09 02:20:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144.
[2022-02-09 02:20:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.851268591426072) internal successors, (4402), 1143 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions.
[2022-02-09 02:20:21,669 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25
[2022-02-09 02:20:21,669 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:21,669 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions.
[2022-02-09 02:20:21,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions.
[2022-02-09 02:20:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:21,671 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:21,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:21,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591
[2022-02-09 02:20:21,671 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:21,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:21,671 INFO L85 PathProgramCache]: Analyzing trace with hash 621669909, now seen corresponding path program 588 times
[2022-02-09 02:20:21,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:21,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934935941]
[2022-02-09 02:20:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:21,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:21,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:21,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:21,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934935941]
[2022-02-09 02:20:21,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934935941] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:21,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:21,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:21,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412601927]
[2022-02-09 02:20:21,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:21,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:21,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:21,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:21,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:21,797 INFO L87 Difference]: Start difference. First operand 1144 states and 4402 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:21,897 INFO L93 Difference]: Finished difference Result 2001 states and 7369 transitions.
[2022-02-09 02:20:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:21,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:21,902 INFO L225 Difference]: With dead ends: 2001
[2022-02-09 02:20:21,902 INFO L226 Difference]: Without dead ends: 1790
[2022-02-09 02:20:21,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:21,902 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 89 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:21,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 136 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:21,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states.
[2022-02-09 02:20:21,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1108.
[2022-02-09 02:20:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.8735320686540198) internal successors, (4288), 1107 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4288 transitions.
[2022-02-09 02:20:21,922 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4288 transitions. Word has length 25
[2022-02-09 02:20:21,922 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:21,922 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4288 transitions.
[2022-02-09 02:20:21,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4288 transitions.
[2022-02-09 02:20:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:21,924 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:21,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:21,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592
[2022-02-09 02:20:21,924 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -214590925, now seen corresponding path program 589 times
[2022-02-09 02:20:21,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:21,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095647741]
[2022-02-09 02:20:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:21,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:22,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:22,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095647741]
[2022-02-09 02:20:22,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095647741] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:22,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:22,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:22,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025790383]
[2022-02-09 02:20:22,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:22,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:22,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:22,038 INFO L87 Difference]: Start difference. First operand 1108 states and 4288 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:22,137 INFO L93 Difference]: Finished difference Result 2115 states and 7713 transitions.
[2022-02-09 02:20:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:22,142 INFO L225 Difference]: With dead ends: 2115
[2022-02-09 02:20:22,142 INFO L226 Difference]: Without dead ends: 1926
[2022-02-09 02:20:22,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:22,142 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 119 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:22,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 125 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:22,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states.
[2022-02-09 02:20:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1148.
[2022-02-09 02:20:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.8639930252833476) internal successors, (4432), 1147 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4432 transitions.
[2022-02-09 02:20:22,161 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4432 transitions. Word has length 25
[2022-02-09 02:20:22,162 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:22,162 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4432 transitions.
[2022-02-09 02:20:22,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4432 transitions.
[2022-02-09 02:20:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:22,163 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:22,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:22,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593
[2022-02-09 02:20:22,164 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:22,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:22,164 INFO L85 PathProgramCache]: Analyzing trace with hash 977875507, now seen corresponding path program 590 times
[2022-02-09 02:20:22,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:22,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313609529]
[2022-02-09 02:20:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:22,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:22,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:22,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313609529]
[2022-02-09 02:20:22,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313609529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:22,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:22,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:22,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095574813]
[2022-02-09 02:20:22,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:22,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:22,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:22,279 INFO L87 Difference]: Start difference. First operand 1148 states and 4432 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:22,377 INFO L93 Difference]: Finished difference Result 2109 states and 7668 transitions.
[2022-02-09 02:20:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:22,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:22,382 INFO L225 Difference]: With dead ends: 2109
[2022-02-09 02:20:22,382 INFO L226 Difference]: Without dead ends: 1898
[2022-02-09 02:20:22,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:22,382 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:22,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 127 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states.
[2022-02-09 02:20:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1120.
[2022-02-09 02:20:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.871313672922252) internal successors, (4332), 1119 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4332 transitions.
[2022-02-09 02:20:22,403 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4332 transitions. Word has length 25
[2022-02-09 02:20:22,403 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:22,403 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4332 transitions.
[2022-02-09 02:20:22,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4332 transitions.
[2022-02-09 02:20:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:22,405 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:22,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:22,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594
[2022-02-09 02:20:22,405 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -695492971, now seen corresponding path program 591 times
[2022-02-09 02:20:22,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:22,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446927133]
[2022-02-09 02:20:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:22,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:22,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:22,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446927133]
[2022-02-09 02:20:22,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446927133] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:22,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:22,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:22,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219324579]
[2022-02-09 02:20:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:22,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:22,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:22,523 INFO L87 Difference]: Start difference. First operand 1120 states and 4332 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:22,633 INFO L93 Difference]: Finished difference Result 2017 states and 7336 transitions.
[2022-02-09 02:20:22,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:22,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:22,637 INFO L225 Difference]: With dead ends: 2017
[2022-02-09 02:20:22,637 INFO L226 Difference]: Without dead ends: 1828
[2022-02-09 02:20:22,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:22,638 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 98 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:22,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states.
[2022-02-09 02:20:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1144.
[2022-02-09 02:20:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.856517935258093) internal successors, (4408), 1143 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4408 transitions.
[2022-02-09 02:20:22,658 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4408 transitions. Word has length 25
[2022-02-09 02:20:22,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:22,658 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4408 transitions.
[2022-02-09 02:20:22,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4408 transitions.
[2022-02-09 02:20:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:22,660 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:22,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:22,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595
[2022-02-09 02:20:22,660 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1621142989, now seen corresponding path program 592 times
[2022-02-09 02:20:22,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:22,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675627414]
[2022-02-09 02:20:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:22,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:22,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:22,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675627414]
[2022-02-09 02:20:22,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675627414] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:22,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:22,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:22,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137441725]
[2022-02-09 02:20:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:22,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:22,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:22,781 INFO L87 Difference]: Start difference. First operand 1144 states and 4408 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:22,885 INFO L93 Difference]: Finished difference Result 1875 states and 6882 transitions.
[2022-02-09 02:20:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:22,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:22,889 INFO L225 Difference]: With dead ends: 1875
[2022-02-09 02:20:22,889 INFO L226 Difference]: Without dead ends: 1676
[2022-02-09 02:20:22,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:22,889 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:22,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 146 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:22,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states.
[2022-02-09 02:20:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1120.
[2022-02-09 02:20:22,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8605898123324396) internal successors, (4320), 1119 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4320 transitions.
[2022-02-09 02:20:22,906 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4320 transitions. Word has length 25
[2022-02-09 02:20:22,907 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:22,907 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4320 transitions.
[2022-02-09 02:20:22,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4320 transitions.
[2022-02-09 02:20:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:22,909 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:22,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:22,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596
[2022-02-09 02:20:22,909 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:22,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1780491725, now seen corresponding path program 593 times
[2022-02-09 02:20:22,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:22,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290428321]
[2022-02-09 02:20:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:22,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:23,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:23,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290428321]
[2022-02-09 02:20:23,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290428321] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:23,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:23,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:23,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627104013]
[2022-02-09 02:20:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:23,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:23,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:23,031 INFO L87 Difference]: Start difference. First operand 1120 states and 4320 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:23,134 INFO L93 Difference]: Finished difference Result 1883 states and 6922 transitions.
[2022-02-09 02:20:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:23,138 INFO L225 Difference]: With dead ends: 1883
[2022-02-09 02:20:23,138 INFO L226 Difference]: Without dead ends: 1700
[2022-02-09 02:20:23,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:23,139 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:23,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 145 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states.
[2022-02-09 02:20:23,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1144.
[2022-02-09 02:20:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8460192475940507) internal successors, (4396), 1143 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4396 transitions.
[2022-02-09 02:20:23,164 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4396 transitions. Word has length 25
[2022-02-09 02:20:23,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:23,164 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4396 transitions.
[2022-02-09 02:20:23,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4396 transitions.
[2022-02-09 02:20:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:23,166 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:23,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:23,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597
[2022-02-09 02:20:23,166 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:23,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash -699429099, now seen corresponding path program 594 times
[2022-02-09 02:20:23,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:23,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995610457]
[2022-02-09 02:20:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:23,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:23,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:23,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995610457]
[2022-02-09 02:20:23,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995610457] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:23,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:23,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:23,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628754658]
[2022-02-09 02:20:23,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:23,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:23,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:23,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:23,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:23,285 INFO L87 Difference]: Start difference. First operand 1144 states and 4396 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:23,382 INFO L93 Difference]: Finished difference Result 1699 states and 6309 transitions.
[2022-02-09 02:20:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:23,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:23,385 INFO L225 Difference]: With dead ends: 1699
[2022-02-09 02:20:23,385 INFO L226 Difference]: Without dead ends: 1488
[2022-02-09 02:20:23,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:23,386 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 81 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:23,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states.
[2022-02-09 02:20:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1108.
[2022-02-09 02:20:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.868112014453478) internal successors, (4282), 1107 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4282 transitions.
[2022-02-09 02:20:23,405 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4282 transitions. Word has length 25
[2022-02-09 02:20:23,405 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:23,405 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4282 transitions.
[2022-02-09 02:20:23,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4282 transitions.
[2022-02-09 02:20:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:23,407 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:23,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:23,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598
[2022-02-09 02:20:23,407 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash 757805585, now seen corresponding path program 595 times
[2022-02-09 02:20:23,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:23,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555857686]
[2022-02-09 02:20:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:23,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:23,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:23,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555857686]
[2022-02-09 02:20:23,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555857686] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:23,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:23,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:23,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744553996]
[2022-02-09 02:20:23,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:23,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:23,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:23,525 INFO L87 Difference]: Start difference. First operand 1108 states and 4282 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:23,618 INFO L93 Difference]: Finished difference Result 1803 states and 6620 transitions.
[2022-02-09 02:20:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:23,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:23,622 INFO L225 Difference]: With dead ends: 1803
[2022-02-09 02:20:23,622 INFO L226 Difference]: Without dead ends: 1616
[2022-02-09 02:20:23,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:23,622 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 101 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:23,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 127 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states.
[2022-02-09 02:20:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1148.
[2022-02-09 02:20:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.858761987794246) internal successors, (4426), 1147 states have internal predecessors, (4426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4426 transitions.
[2022-02-09 02:20:23,640 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4426 transitions. Word has length 25
[2022-02-09 02:20:23,640 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:23,640 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4426 transitions.
[2022-02-09 02:20:23,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4426 transitions.
[2022-02-09 02:20:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:23,642 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:23,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:23,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599
[2022-02-09 02:20:23,642 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:23,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:23,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1838868211, now seen corresponding path program 596 times
[2022-02-09 02:20:23,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:23,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256161069]
[2022-02-09 02:20:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:23,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:23,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:23,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256161069]
[2022-02-09 02:20:23,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256161069] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:23,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:23,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:23,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670213813]
[2022-02-09 02:20:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:23,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:23,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:23,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:23,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:23,763 INFO L87 Difference]: Start difference. First operand 1148 states and 4426 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:23,858 INFO L93 Difference]: Finished difference Result 1799 states and 6580 transitions.
[2022-02-09 02:20:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:23,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:23,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:23,863 INFO L225 Difference]: With dead ends: 1799
[2022-02-09 02:20:23,863 INFO L226 Difference]: Without dead ends: 1588
[2022-02-09 02:20:23,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:23,863 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 91 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:23,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 127 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states.
[2022-02-09 02:20:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1120.
[2022-02-09 02:20:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8659517426273458) internal successors, (4326), 1119 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions.
[2022-02-09 02:20:23,880 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25
[2022-02-09 02:20:23,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:23,880 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions.
[2022-02-09 02:20:23,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions.
[2022-02-09 02:20:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:23,882 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:23,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:23,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600
[2022-02-09 02:20:23,882 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:23,882 INFO L85 PathProgramCache]: Analyzing trace with hash 276903539, now seen corresponding path program 597 times
[2022-02-09 02:20:23,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:23,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306758348]
[2022-02-09 02:20:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:23,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:24,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:24,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306758348]
[2022-02-09 02:20:24,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306758348] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:24,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:24,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:24,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016293880]
[2022-02-09 02:20:24,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:24,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:24,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:24,004 INFO L87 Difference]: Start difference. First operand 1120 states and 4326 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:24,099 INFO L93 Difference]: Finished difference Result 1715 states and 6276 transitions.
[2022-02-09 02:20:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:24,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:24,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:24,103 INFO L225 Difference]: With dead ends: 1715
[2022-02-09 02:20:24,103 INFO L226 Difference]: Without dead ends: 1528
[2022-02-09 02:20:24,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:24,103 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 86 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:24,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 131 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states.
[2022-02-09 02:20:24,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1144.
[2022-02-09 02:20:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.851268591426072) internal successors, (4402), 1143 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions.
[2022-02-09 02:20:24,120 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25
[2022-02-09 02:20:24,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:24,120 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions.
[2022-02-09 02:20:24,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions.
[2022-02-09 02:20:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:24,121 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:24,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:24,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601
[2022-02-09 02:20:24,122 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:24,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:24,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1411342733, now seen corresponding path program 598 times
[2022-02-09 02:20:24,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:24,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028152290]
[2022-02-09 02:20:24,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:24,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:24,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:24,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028152290]
[2022-02-09 02:20:24,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028152290] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:24,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:24,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:24,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006364949]
[2022-02-09 02:20:24,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:24,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:24,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:24,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:24,244 INFO L87 Difference]: Start difference. First operand 1144 states and 4402 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:24,344 INFO L93 Difference]: Finished difference Result 1575 states and 5827 transitions.
[2022-02-09 02:20:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:24,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:24,347 INFO L225 Difference]: With dead ends: 1575
[2022-02-09 02:20:24,347 INFO L226 Difference]: Without dead ends: 1376
[2022-02-09 02:20:24,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:24,347 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 87 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:24,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 117 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states.
[2022-02-09 02:20:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1120.
[2022-02-09 02:20:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8552278820375334) internal successors, (4314), 1119 states have internal predecessors, (4314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4314 transitions.
[2022-02-09 02:20:24,363 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4314 transitions. Word has length 25
[2022-02-09 02:20:24,363 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:24,363 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4314 transitions.
[2022-02-09 02:20:24,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4314 transitions.
[2022-02-09 02:20:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:24,365 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:24,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:24,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602
[2022-02-09 02:20:24,365 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 664908501, now seen corresponding path program 599 times
[2022-02-09 02:20:24,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:24,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119440987]
[2022-02-09 02:20:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:24,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:24,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:24,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119440987]
[2022-02-09 02:20:24,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119440987] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:24,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:24,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:24,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246317570]
[2022-02-09 02:20:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:24,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:24,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:24,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:24,481 INFO L87 Difference]: Start difference. First operand 1120 states and 4314 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:24,562 INFO L93 Difference]: Finished difference Result 1503 states and 5563 transitions.
[2022-02-09 02:20:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:24,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:24,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:24,565 INFO L225 Difference]: With dead ends: 1503
[2022-02-09 02:20:24,565 INFO L226 Difference]: Without dead ends: 1320
[2022-02-09 02:20:24,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:24,565 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 89 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:24,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 109 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:20:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states.
[2022-02-09 02:20:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1144.
[2022-02-09 02:20:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8407699037620295) internal successors, (4390), 1143 states have internal predecessors, (4390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4390 transitions.
[2022-02-09 02:20:24,582 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4390 transitions. Word has length 25
[2022-02-09 02:20:24,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:24,582 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4390 transitions.
[2022-02-09 02:20:24,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4390 transitions.
[2022-02-09 02:20:24,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:24,584 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:24,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:24,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603
[2022-02-09 02:20:24,584 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash -181888461, now seen corresponding path program 600 times
[2022-02-09 02:20:24,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:24,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510354800]
[2022-02-09 02:20:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:24,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:24,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:24,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510354800]
[2022-02-09 02:20:24,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510354800] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:24,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:24,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:24,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067833266]
[2022-02-09 02:20:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:24,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:24,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:24,700 INFO L87 Difference]: Start difference. First operand 1144 states and 4390 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:24,777 INFO L93 Difference]: Finished difference Result 1319 states and 4950 transitions.
[2022-02-09 02:20:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:24,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:24,780 INFO L225 Difference]: With dead ends: 1319
[2022-02-09 02:20:24,780 INFO L226 Difference]: Without dead ends: 1100
[2022-02-09 02:20:24,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:24,780 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 76 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:24,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 104 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:20:24,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states.
[2022-02-09 02:20:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1100.
[2022-02-09 02:20:24,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.880800727934486) internal successors, (4265), 1099 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4265 transitions.
[2022-02-09 02:20:24,795 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4265 transitions. Word has length 25
[2022-02-09 02:20:24,795 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:24,795 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4265 transitions.
[2022-02-09 02:20:24,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4265 transitions.
[2022-02-09 02:20:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:24,797 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:24,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:24,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604
[2022-02-09 02:20:24,797 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash 821229273, now seen corresponding path program 601 times
[2022-02-09 02:20:24,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:24,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553867167]
[2022-02-09 02:20:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:24,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:24,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:24,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553867167]
[2022-02-09 02:20:24,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553867167] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:24,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:24,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:24,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128375695]
[2022-02-09 02:20:24,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:24,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:24,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:24,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:24,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:24,912 INFO L87 Difference]: Start difference. First operand 1100 states and 4265 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:25,015 INFO L93 Difference]: Finished difference Result 2103 states and 7646 transitions.
[2022-02-09 02:20:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:25,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:25,020 INFO L225 Difference]: With dead ends: 2103
[2022-02-09 02:20:25,020 INFO L226 Difference]: Without dead ends: 1914
[2022-02-09 02:20:25,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:25,020 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 117 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:25,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 112 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states.
[2022-02-09 02:20:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1144.
[2022-02-09 02:20:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.869641294838145) internal successors, (4423), 1143 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4423 transitions.
[2022-02-09 02:20:25,038 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4423 transitions. Word has length 25
[2022-02-09 02:20:25,038 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:25,038 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4423 transitions.
[2022-02-09 02:20:25,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4423 transitions.
[2022-02-09 02:20:25,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:25,040 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:25,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:25,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605
[2022-02-09 02:20:25,040 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1222107721, now seen corresponding path program 602 times
[2022-02-09 02:20:25,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:25,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18069161]
[2022-02-09 02:20:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:25,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:25,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:25,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18069161]
[2022-02-09 02:20:25,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18069161] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:25,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:25,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:25,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478077805]
[2022-02-09 02:20:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:25,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:25,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:25,158 INFO L87 Difference]: Start difference. First operand 1144 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:25,278 INFO L93 Difference]: Finished difference Result 2101 states and 7611 transitions.
[2022-02-09 02:20:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:25,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:25,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:25,283 INFO L225 Difference]: With dead ends: 2101
[2022-02-09 02:20:25,283 INFO L226 Difference]: Without dead ends: 1884
[2022-02-09 02:20:25,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:25,283 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:25,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 131 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states.
[2022-02-09 02:20:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1114.
[2022-02-09 02:20:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.8778077268643307) internal successors, (4316), 1113 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4316 transitions.
[2022-02-09 02:20:25,302 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4316 transitions. Word has length 25
[2022-02-09 02:20:25,302 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:25,302 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4316 transitions.
[2022-02-09 02:20:25,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4316 transitions.
[2022-02-09 02:20:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:25,304 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:25,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:25,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606
[2022-02-09 02:20:25,304 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash -25567689, now seen corresponding path program 603 times
[2022-02-09 02:20:25,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:25,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638207298]
[2022-02-09 02:20:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:25,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:25,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:25,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638207298]
[2022-02-09 02:20:25,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638207298] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:25,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:25,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:25,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594873405]
[2022-02-09 02:20:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:25,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:25,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:25,422 INFO L87 Difference]: Start difference. First operand 1114 states and 4316 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:25,529 INFO L93 Difference]: Finished difference Result 2097 states and 7613 transitions.
[2022-02-09 02:20:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:25,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:25,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:25,533 INFO L225 Difference]: With dead ends: 2097
[2022-02-09 02:20:25,533 INFO L226 Difference]: Without dead ends: 1908
[2022-02-09 02:20:25,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:25,533 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 105 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:25,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 119 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:25,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states.
[2022-02-09 02:20:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1142.
[2022-02-09 02:20:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.85977212971078) internal successors, (4404), 1141 states have internal predecessors, (4404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4404 transitions.
[2022-02-09 02:20:25,552 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4404 transitions. Word has length 25
[2022-02-09 02:20:25,552 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:25,552 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4404 transitions.
[2022-02-09 02:20:25,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4404 transitions.
[2022-02-09 02:20:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:25,554 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:25,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:25,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607
[2022-02-09 02:20:25,554 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1166898743, now seen corresponding path program 604 times
[2022-02-09 02:20:25,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:25,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661778348]
[2022-02-09 02:20:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:25,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:25,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:25,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661778348]
[2022-02-09 02:20:25,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661778348] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:25,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:25,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:25,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117965395]
[2022-02-09 02:20:25,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:25,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:25,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:25,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:25,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:25,672 INFO L87 Difference]: Start difference. First operand 1142 states and 4404 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:25,782 INFO L93 Difference]: Finished difference Result 2091 states and 7568 transitions.
[2022-02-09 02:20:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:25,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:25,786 INFO L225 Difference]: With dead ends: 2091
[2022-02-09 02:20:25,786 INFO L226 Difference]: Without dead ends: 1880
[2022-02-09 02:20:25,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:25,786 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:25,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 130 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states.
[2022-02-09 02:20:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1114.
[2022-02-09 02:20:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.8652291105121295) internal successors, (4302), 1113 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4302 transitions.
[2022-02-09 02:20:25,808 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4302 transitions. Word has length 25
[2022-02-09 02:20:25,808 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:25,808 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4302 transitions.
[2022-02-09 02:20:25,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4302 transitions.
[2022-02-09 02:20:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:25,810 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:25,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:25,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608
[2022-02-09 02:20:25,810 INFO L402 AbstractCegarLoop]: === Iteration 610 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash 956779925, now seen corresponding path program 605 times
[2022-02-09 02:20:25,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:25,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217255297]
[2022-02-09 02:20:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:25,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:25,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:25,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217255297]
[2022-02-09 02:20:25,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217255297] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:25,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:25,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:25,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126070346]
[2022-02-09 02:20:25,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:25,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:25,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:25,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:25,931 INFO L87 Difference]: Start difference. First operand 1114 states and 4302 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:26,033 INFO L93 Difference]: Finished difference Result 2093 states and 7589 transitions.
[2022-02-09 02:20:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:26,037 INFO L225 Difference]: With dead ends: 2093
[2022-02-09 02:20:26,037 INFO L226 Difference]: Without dead ends: 1906
[2022-02-09 02:20:26,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:26,037 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:26,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 122 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states.
[2022-02-09 02:20:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142.
[2022-02-09 02:20:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.847502191060473) internal successors, (4390), 1141 states have internal predecessors, (4390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4390 transitions.
[2022-02-09 02:20:26,056 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4390 transitions. Word has length 25
[2022-02-09 02:20:26,056 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:26,056 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4390 transitions.
[2022-02-09 02:20:26,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4390 transitions.
[2022-02-09 02:20:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:26,058 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:26,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:26,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609
[2022-02-09 02:20:26,058 INFO L402 AbstractCegarLoop]: === Iteration 611 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2037842551, now seen corresponding path program 606 times
[2022-02-09 02:20:26,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:26,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236739446]
[2022-02-09 02:20:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:26,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:26,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:26,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236739446]
[2022-02-09 02:20:26,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236739446] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:26,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:26,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:26,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86189651]
[2022-02-09 02:20:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:26,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:26,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:26,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:26,177 INFO L87 Difference]: Start difference. First operand 1142 states and 4390 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:26,286 INFO L93 Difference]: Finished difference Result 2089 states and 7549 transitions.
[2022-02-09 02:20:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:26,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:26,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:26,290 INFO L225 Difference]: With dead ends: 2089
[2022-02-09 02:20:26,290 INFO L226 Difference]: Without dead ends: 1864
[2022-02-09 02:20:26,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:26,290 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:26,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 118 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states.
[2022-02-09 02:20:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1100.
[2022-02-09 02:20:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.875341219290264) internal successors, (4259), 1099 states have internal predecessors, (4259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4259 transitions.
[2022-02-09 02:20:26,308 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4259 transitions. Word has length 25
[2022-02-09 02:20:26,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:26,308 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4259 transitions.
[2022-02-09 02:20:26,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4259 transitions.
[2022-02-09 02:20:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:26,310 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:26,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:26,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610
[2022-02-09 02:20:26,310 INFO L402 AbstractCegarLoop]: === Iteration 612 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:26,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1201832265, now seen corresponding path program 607 times
[2022-02-09 02:20:26,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:26,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441656810]
[2022-02-09 02:20:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:26,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:26,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:26,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441656810]
[2022-02-09 02:20:26,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441656810] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:26,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:26,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:26,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966491325]
[2022-02-09 02:20:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:26,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:26,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:26,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:26,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:26,429 INFO L87 Difference]: Start difference. First operand 1100 states and 4259 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:26,541 INFO L93 Difference]: Finished difference Result 2085 states and 7571 transitions.
[2022-02-09 02:20:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:26,545 INFO L225 Difference]: With dead ends: 2085
[2022-02-09 02:20:26,546 INFO L226 Difference]: Without dead ends: 1896
[2022-02-09 02:20:26,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:26,546 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:26,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 123 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:26,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states.
[2022-02-09 02:20:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1142.
[2022-02-09 02:20:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.8632778264680105) internal successors, (4408), 1141 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4408 transitions.
[2022-02-09 02:20:26,564 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4408 transitions. Word has length 25
[2022-02-09 02:20:26,564 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:26,565 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4408 transitions.
[2022-02-09 02:20:26,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4408 transitions.
[2022-02-09 02:20:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:26,566 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:26,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:26,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611
[2022-02-09 02:20:26,566 INFO L402 AbstractCegarLoop]: === Iteration 613 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:26,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1049798037, now seen corresponding path program 608 times
[2022-02-09 02:20:26,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:26,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070223189]
[2022-02-09 02:20:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:26,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:26,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:26,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070223189]
[2022-02-09 02:20:26,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070223189] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:26,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:26,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:26,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305838089]
[2022-02-09 02:20:26,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:26,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:26,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:26,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:26,685 INFO L87 Difference]: Start difference. First operand 1142 states and 4408 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:26,793 INFO L93 Difference]: Finished difference Result 2083 states and 7536 transitions.
[2022-02-09 02:20:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:26,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:26,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:26,813 INFO L225 Difference]: With dead ends: 2083
[2022-02-09 02:20:26,813 INFO L226 Difference]: Without dead ends: 1866
[2022-02-09 02:20:26,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:26,813 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 126 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states.
[2022-02-09 02:20:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1112.
[2022-02-09 02:20:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8730873087308733) internal successors, (4303), 1111 states have internal predecessors, (4303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4303 transitions.
[2022-02-09 02:20:26,833 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4303 transitions. Word has length 25
[2022-02-09 02:20:26,833 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:26,833 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4303 transitions.
[2022-02-09 02:20:26,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4303 transitions.
[2022-02-09 02:20:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:26,835 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:26,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:26,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612
[2022-02-09 02:20:26,835 INFO L402 AbstractCegarLoop]: === Iteration 614 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1997859145, now seen corresponding path program 609 times
[2022-02-09 02:20:26,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:26,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078258277]
[2022-02-09 02:20:26,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:26,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:26,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:26,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078258277]
[2022-02-09 02:20:26,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078258277] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:26,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:26,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:26,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477628337]
[2022-02-09 02:20:26,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:26,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:26,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:26,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:26,952 INFO L87 Difference]: Start difference. First operand 1112 states and 4303 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:27,074 INFO L93 Difference]: Finished difference Result 2067 states and 7496 transitions.
[2022-02-09 02:20:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:27,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:27,078 INFO L225 Difference]: With dead ends: 2067
[2022-02-09 02:20:27,079 INFO L226 Difference]: Without dead ends: 1878
[2022-02-09 02:20:27,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:27,079 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 93 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:27,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 131 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states.
[2022-02-09 02:20:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1136.
[2022-02-09 02:20:27,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8581497797356827) internal successors, (4379), 1135 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4379 transitions.
[2022-02-09 02:20:27,099 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4379 transitions. Word has length 25
[2022-02-09 02:20:27,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:27,099 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4379 transitions.
[2022-02-09 02:20:27,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4379 transitions.
[2022-02-09 02:20:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:27,101 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:27,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:27,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613
[2022-02-09 02:20:27,101 INFO L402 AbstractCegarLoop]: === Iteration 615 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1442070857, now seen corresponding path program 610 times
[2022-02-09 02:20:27,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:27,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359195005]
[2022-02-09 02:20:27,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:27,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:27,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:27,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359195005]
[2022-02-09 02:20:27,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359195005] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:27,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:27,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:27,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088498085]
[2022-02-09 02:20:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:27,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:27,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:27,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:27,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:27,218 INFO L87 Difference]: Start difference. First operand 1136 states and 4379 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:27,334 INFO L93 Difference]: Finished difference Result 2053 states and 7427 transitions.
[2022-02-09 02:20:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:27,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:27,338 INFO L225 Difference]: With dead ends: 2053
[2022-02-09 02:20:27,338 INFO L226 Difference]: Without dead ends: 1854
[2022-02-09 02:20:27,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:27,339 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 95 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:27,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 127 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states.
[2022-02-09 02:20:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1112.
[2022-02-09 02:20:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.862286228622862) internal successors, (4291), 1111 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions.
[2022-02-09 02:20:27,364 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25
[2022-02-09 02:20:27,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:27,364 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions.
[2022-02-09 02:20:27,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions.
[2022-02-09 02:20:27,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:27,366 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:27,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:27,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614
[2022-02-09 02:20:27,366 INFO L402 AbstractCegarLoop]: === Iteration 616 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1015511531, now seen corresponding path program 611 times
[2022-02-09 02:20:27,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:27,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530852862]
[2022-02-09 02:20:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:27,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:27,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:27,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530852862]
[2022-02-09 02:20:27,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530852862] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:27,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:27,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:27,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062438855]
[2022-02-09 02:20:27,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:27,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:27,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:27,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:27,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:27,485 INFO L87 Difference]: Start difference. First operand 1112 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:27,584 INFO L93 Difference]: Finished difference Result 2063 states and 7474 transitions.
[2022-02-09 02:20:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:27,589 INFO L225 Difference]: With dead ends: 2063
[2022-02-09 02:20:27,589 INFO L226 Difference]: Without dead ends: 1876
[2022-02-09 02:20:27,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:27,589 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 118 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:27,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 112 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states.
[2022-02-09 02:20:27,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1136.
[2022-02-09 02:20:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8475770925110133) internal successors, (4367), 1135 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions.
[2022-02-09 02:20:27,607 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25
[2022-02-09 02:20:27,607 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:27,607 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions.
[2022-02-09 02:20:27,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions.
[2022-02-09 02:20:27,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:27,609 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:27,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:27,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615
[2022-02-09 02:20:27,609 INFO L402 AbstractCegarLoop]: === Iteration 617 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1222319497, now seen corresponding path program 612 times
[2022-02-09 02:20:27,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:27,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276420191]
[2022-02-09 02:20:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:27,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:27,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:27,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276420191]
[2022-02-09 02:20:27,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276420191] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:27,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:27,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:27,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243809927]
[2022-02-09 02:20:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:27,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:27,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:27,726 INFO L87 Difference]: Start difference. First operand 1136 states and 4367 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:27,841 INFO L93 Difference]: Finished difference Result 2051 states and 7410 transitions.
[2022-02-09 02:20:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:27,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:27,845 INFO L225 Difference]: With dead ends: 2051
[2022-02-09 02:20:27,845 INFO L226 Difference]: Without dead ends: 1840
[2022-02-09 02:20:27,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:27,846 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:27,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 122 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:27,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states.
[2022-02-09 02:20:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1100.
[2022-02-09 02:20:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.869881710646042) internal successors, (4253), 1099 states have internal predecessors, (4253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4253 transitions.
[2022-02-09 02:20:27,863 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4253 transitions. Word has length 25
[2022-02-09 02:20:27,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:27,863 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4253 transitions.
[2022-02-09 02:20:27,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4253 transitions.
[2022-02-09 02:20:27,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:27,865 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:27,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:27,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616
[2022-02-09 02:20:27,865 INFO L402 AbstractCegarLoop]: === Iteration 618 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:27,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:27,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2058580331, now seen corresponding path program 613 times
[2022-02-09 02:20:27,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:27,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609979152]
[2022-02-09 02:20:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:27,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:27,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:27,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609979152]
[2022-02-09 02:20:27,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609979152] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:27,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:27,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:27,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485947739]
[2022-02-09 02:20:27,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:27,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:27,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:27,981 INFO L87 Difference]: Start difference. First operand 1100 states and 4253 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:28,091 INFO L93 Difference]: Finished difference Result 2073 states and 7527 transitions.
[2022-02-09 02:20:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:28,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:28,095 INFO L225 Difference]: With dead ends: 2073
[2022-02-09 02:20:28,096 INFO L226 Difference]: Without dead ends: 1884
[2022-02-09 02:20:28,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:28,096 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:28,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states.
[2022-02-09 02:20:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1140.
[2022-02-09 02:20:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 3.8604038630377526) internal successors, (4397), 1139 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4397 transitions.
[2022-02-09 02:20:28,114 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4397 transitions. Word has length 25
[2022-02-09 02:20:28,114 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:28,114 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4397 transitions.
[2022-02-09 02:20:28,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4397 transitions.
[2022-02-09 02:20:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:28,116 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:28,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:28,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617
[2022-02-09 02:20:28,116 INFO L402 AbstractCegarLoop]: === Iteration 619 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:28,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:28,117 INFO L85 PathProgramCache]: Analyzing trace with hash -866113899, now seen corresponding path program 614 times
[2022-02-09 02:20:28,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:28,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108181486]
[2022-02-09 02:20:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:28,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:28,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:28,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108181486]
[2022-02-09 02:20:28,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108181486] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:28,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:28,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:28,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045847759]
[2022-02-09 02:20:28,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:28,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:28,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:28,239 INFO L87 Difference]: Start difference. First operand 1140 states and 4397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:28,343 INFO L93 Difference]: Finished difference Result 2067 states and 7482 transitions.
[2022-02-09 02:20:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:28,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:28,347 INFO L225 Difference]: With dead ends: 2067
[2022-02-09 02:20:28,348 INFO L226 Difference]: Without dead ends: 1856
[2022-02-09 02:20:28,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:28,348 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:28,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states.
[2022-02-09 02:20:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1112.
[2022-02-09 02:20:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.867686768676868) internal successors, (4297), 1111 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4297 transitions.
[2022-02-09 02:20:28,366 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4297 transitions. Word has length 25
[2022-02-09 02:20:28,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:28,366 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4297 transitions.
[2022-02-09 02:20:28,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4297 transitions.
[2022-02-09 02:20:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:28,368 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:28,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:28,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618
[2022-02-09 02:20:28,368 INFO L402 AbstractCegarLoop]: === Iteration 620 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1755484919, now seen corresponding path program 615 times
[2022-02-09 02:20:28,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:28,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813707964]
[2022-02-09 02:20:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:28,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:28,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:28,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813707964]
[2022-02-09 02:20:28,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813707964] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:28,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:28,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:28,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210817775]
[2022-02-09 02:20:28,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:28,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:28,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:28,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:28,486 INFO L87 Difference]: Start difference. First operand 1112 states and 4297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:28,605 INFO L93 Difference]: Finished difference Result 2061 states and 7471 transitions.
[2022-02-09 02:20:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:28,610 INFO L225 Difference]: With dead ends: 2061
[2022-02-09 02:20:28,610 INFO L226 Difference]: Without dead ends: 1872
[2022-02-09 02:20:28,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:28,610 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 136 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:28,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states.
[2022-02-09 02:20:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1136.
[2022-02-09 02:20:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.852863436123348) internal successors, (4373), 1135 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4373 transitions.
[2022-02-09 02:20:28,629 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4373 transitions. Word has length 25
[2022-02-09 02:20:28,629 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:28,629 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4373 transitions.
[2022-02-09 02:20:28,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4373 transitions.
[2022-02-09 02:20:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:28,631 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:28,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:28,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619
[2022-02-09 02:20:28,631 INFO L402 AbstractCegarLoop]: === Iteration 621 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:28,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:28,631 INFO L85 PathProgramCache]: Analyzing trace with hash 829834901, now seen corresponding path program 616 times
[2022-02-09 02:20:28,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:28,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097321291]
[2022-02-09 02:20:28,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:28,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:28,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:28,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097321291]
[2022-02-09 02:20:28,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097321291] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:28,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:28,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:28,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569648056]
[2022-02-09 02:20:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:28,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:28,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:28,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:28,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:28,752 INFO L87 Difference]: Start difference. First operand 1136 states and 4373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:28,866 INFO L93 Difference]: Finished difference Result 2047 states and 7402 transitions.
[2022-02-09 02:20:28,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:28,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:28,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:28,871 INFO L225 Difference]: With dead ends: 2047
[2022-02-09 02:20:28,871 INFO L226 Difference]: Without dead ends: 1848
[2022-02-09 02:20:28,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:28,871 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:28,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 118 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states.
[2022-02-09 02:20:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1112.
[2022-02-09 02:20:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8568856885688567) internal successors, (4285), 1111 states have internal predecessors, (4285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4285 transitions.
[2022-02-09 02:20:28,890 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4285 transitions. Word has length 25
[2022-02-09 02:20:28,890 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:28,890 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4285 transitions.
[2022-02-09 02:20:28,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:28,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4285 transitions.
[2022-02-09 02:20:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:28,892 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:28,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:28,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620
[2022-02-09 02:20:28,892 INFO L402 AbstractCegarLoop]: === Iteration 622 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:28,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash 670486165, now seen corresponding path program 617 times
[2022-02-09 02:20:28,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:28,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882500035]
[2022-02-09 02:20:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:28,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:29,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:29,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882500035]
[2022-02-09 02:20:29,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882500035] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:29,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:29,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:29,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989857852]
[2022-02-09 02:20:29,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:29,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:29,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:29,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:29,014 INFO L87 Difference]: Start difference. First operand 1112 states and 4285 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:29,122 INFO L93 Difference]: Finished difference Result 2049 states and 7425 transitions.
[2022-02-09 02:20:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:29,127 INFO L225 Difference]: With dead ends: 2049
[2022-02-09 02:20:29,127 INFO L226 Difference]: Without dead ends: 1866
[2022-02-09 02:20:29,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:29,127 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:29,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 126 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:29,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states.
[2022-02-09 02:20:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1136.
[2022-02-09 02:20:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8422907488986784) internal successors, (4361), 1135 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4361 transitions.
[2022-02-09 02:20:29,146 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4361 transitions. Word has length 25
[2022-02-09 02:20:29,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:29,146 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4361 transitions.
[2022-02-09 02:20:29,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4361 transitions.
[2022-02-09 02:20:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:29,148 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:29,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621
[2022-02-09 02:20:29,148 INFO L402 AbstractCegarLoop]: === Iteration 623 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:29,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1751548791, now seen corresponding path program 618 times
[2022-02-09 02:20:29,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:29,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918854914]
[2022-02-09 02:20:29,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:29,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:29,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:29,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918854914]
[2022-02-09 02:20:29,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918854914] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:29,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:29,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:29,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11163924]
[2022-02-09 02:20:29,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:29,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:29,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:29,267 INFO L87 Difference]: Start difference. First operand 1136 states and 4361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:29,390 INFO L93 Difference]: Finished difference Result 2041 states and 7373 transitions.
[2022-02-09 02:20:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:29,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:29,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:29,395 INFO L225 Difference]: With dead ends: 2041
[2022-02-09 02:20:29,395 INFO L226 Difference]: Without dead ends: 1830
[2022-02-09 02:20:29,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:29,395 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 94 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:29,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 118 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states.
[2022-02-09 02:20:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1100.
[2022-02-09 02:20:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.86442220200182) internal successors, (4247), 1099 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4247 transitions.
[2022-02-09 02:20:29,413 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4247 transitions. Word has length 25
[2022-02-09 02:20:29,413 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:29,413 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4247 transitions.
[2022-02-09 02:20:29,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4247 transitions.
[2022-02-09 02:20:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:29,415 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:29,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:29,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622
[2022-02-09 02:20:29,415 INFO L402 AbstractCegarLoop]: === Iteration 624 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:29,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1086183821, now seen corresponding path program 619 times
[2022-02-09 02:20:29,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:29,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702310159]
[2022-02-09 02:20:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:29,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:29,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:29,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702310159]
[2022-02-09 02:20:29,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702310159] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:29,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:29,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:29,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967445107]
[2022-02-09 02:20:29,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:29,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:29,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:29,534 INFO L87 Difference]: Start difference. First operand 1100 states and 4247 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:29,632 INFO L93 Difference]: Finished difference Result 2067 states and 7506 transitions.
[2022-02-09 02:20:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:29,637 INFO L225 Difference]: With dead ends: 2067
[2022-02-09 02:20:29,637 INFO L226 Difference]: Without dead ends: 1880
[2022-02-09 02:20:29,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:29,637 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 121 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:29,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 108 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states.
[2022-02-09 02:20:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1140.
[2022-02-09 02:20:29,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 3.85513608428446) internal successors, (4391), 1139 states have internal predecessors, (4391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4391 transitions.
[2022-02-09 02:20:29,656 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4391 transitions. Word has length 25
[2022-02-09 02:20:29,656 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:29,656 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4391 transitions.
[2022-02-09 02:20:29,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4391 transitions.
[2022-02-09 02:20:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:29,658 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:29,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:29,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623
[2022-02-09 02:20:29,658 INFO L402 AbstractCegarLoop]: === Iteration 625 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:29,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:29,659 INFO L85 PathProgramCache]: Analyzing trace with hash -5121195, now seen corresponding path program 620 times
[2022-02-09 02:20:29,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:29,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118027765]
[2022-02-09 02:20:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:29,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:29,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:29,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118027765]
[2022-02-09 02:20:29,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118027765] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:29,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:29,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:29,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249942540]
[2022-02-09 02:20:29,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:29,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:29,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:29,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:29,774 INFO L87 Difference]: Start difference. First operand 1140 states and 4391 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:29,899 INFO L93 Difference]: Finished difference Result 2063 states and 7466 transitions.
[2022-02-09 02:20:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:29,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:29,903 INFO L225 Difference]: With dead ends: 2063
[2022-02-09 02:20:29,903 INFO L226 Difference]: Without dead ends: 1852
[2022-02-09 02:20:29,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:29,904 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 89 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:29,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 139 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states.
[2022-02-09 02:20:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1112.
[2022-02-09 02:20:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.862286228622862) internal successors, (4291), 1111 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions.
[2022-02-09 02:20:29,923 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25
[2022-02-09 02:20:29,923 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:29,923 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions.
[2022-02-09 02:20:29,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions.
[2022-02-09 02:20:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:29,925 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:29,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:29,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624
[2022-02-09 02:20:29,925 INFO L402 AbstractCegarLoop]: === Iteration 626 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:29,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1567085867, now seen corresponding path program 621 times
[2022-02-09 02:20:29,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:29,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542426605]
[2022-02-09 02:20:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:29,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:30,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:30,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542426605]
[2022-02-09 02:20:30,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542426605] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:30,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:30,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:30,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140890957]
[2022-02-09 02:20:30,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:30,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:30,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:30,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:30,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:30,042 INFO L87 Difference]: Start difference. First operand 1112 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:30,157 INFO L93 Difference]: Finished difference Result 2055 states and 7450 transitions.
[2022-02-09 02:20:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:30,162 INFO L225 Difference]: With dead ends: 2055
[2022-02-09 02:20:30,162 INFO L226 Difference]: Without dead ends: 1868
[2022-02-09 02:20:30,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:30,162 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 120 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:30,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 109 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states.
[2022-02-09 02:20:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1136.
[2022-02-09 02:20:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8475770925110133) internal successors, (4367), 1135 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions.
[2022-02-09 02:20:30,182 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25
[2022-02-09 02:20:30,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:30,182 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions.
[2022-02-09 02:20:30,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions.
[2022-02-09 02:20:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:30,183 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:30,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:30,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625
[2022-02-09 02:20:30,184 INFO L402 AbstractCegarLoop]: === Iteration 627 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:30,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1039635157, now seen corresponding path program 622 times
[2022-02-09 02:20:30,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:30,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004396693]
[2022-02-09 02:20:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:30,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:30,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:30,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004396693]
[2022-02-09 02:20:30,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004396693] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:30,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:30,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:30,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991839447]
[2022-02-09 02:20:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:30,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:30,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:30,300 INFO L87 Difference]: Start difference. First operand 1136 states and 4367 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:30,403 INFO L93 Difference]: Finished difference Result 2043 states and 7386 transitions.
[2022-02-09 02:20:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:30,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:30,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:30,408 INFO L225 Difference]: With dead ends: 2043
[2022-02-09 02:20:30,408 INFO L226 Difference]: Without dead ends: 1844
[2022-02-09 02:20:30,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:30,408 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:30,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 111 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:30,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states.
[2022-02-09 02:20:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1112.
[2022-02-09 02:20:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8514851485148514) internal successors, (4279), 1111 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4279 transitions.
[2022-02-09 02:20:30,427 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4279 transitions. Word has length 25
[2022-02-09 02:20:30,427 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:30,428 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4279 transitions.
[2022-02-09 02:20:30,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4279 transitions.
[2022-02-09 02:20:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:30,429 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:30,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:30,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626
[2022-02-09 02:20:30,429 INFO L402 AbstractCegarLoop]: === Iteration 628 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:30,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1179080905, now seen corresponding path program 623 times
[2022-02-09 02:20:30,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:30,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768358351]
[2022-02-09 02:20:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:30,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:30,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:30,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768358351]
[2022-02-09 02:20:30,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768358351] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:30,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:30,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:30,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080376839]
[2022-02-09 02:20:30,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:30,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:30,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:30,548 INFO L87 Difference]: Start difference. First operand 1112 states and 4279 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:30,650 INFO L93 Difference]: Finished difference Result 2047 states and 7414 transitions.
[2022-02-09 02:20:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:30,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:30,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:30,654 INFO L225 Difference]: With dead ends: 2047
[2022-02-09 02:20:30,655 INFO L226 Difference]: Without dead ends: 1864
[2022-02-09 02:20:30,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:30,655 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 111 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:30,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 117 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states.
[2022-02-09 02:20:30,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1136.
[2022-02-09 02:20:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8370044052863435) internal successors, (4355), 1135 states have internal predecessors, (4355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4355 transitions.
[2022-02-09 02:20:30,673 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4355 transitions. Word has length 25
[2022-02-09 02:20:30,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:30,673 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4355 transitions.
[2022-02-09 02:20:30,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4355 transitions.
[2022-02-09 02:20:30,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:30,675 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:30,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:30,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627
[2022-02-09 02:20:30,675 INFO L402 AbstractCegarLoop]: === Iteration 629 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2025877867, now seen corresponding path program 624 times
[2022-02-09 02:20:30,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:30,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103184692]
[2022-02-09 02:20:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:30,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:30,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:30,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103184692]
[2022-02-09 02:20:30,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103184692] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:30,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:30,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:30,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094473681]
[2022-02-09 02:20:30,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:30,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:30,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:30,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:30,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:30,792 INFO L87 Difference]: Start difference. First operand 1136 states and 4355 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:30,900 INFO L93 Difference]: Finished difference Result 2039 states and 7362 transitions.
[2022-02-09 02:20:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:30,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:30,904 INFO L225 Difference]: With dead ends: 2039
[2022-02-09 02:20:30,904 INFO L226 Difference]: Without dead ends: 1822
[2022-02-09 02:20:30,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:30,904 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 100 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:30,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 111 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states.
[2022-02-09 02:20:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1094.
[2022-02-09 02:20:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.8709972552607503) internal successors, (4231), 1093 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4231 transitions.
[2022-02-09 02:20:30,921 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4231 transitions. Word has length 25
[2022-02-09 02:20:30,922 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:30,922 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4231 transitions.
[2022-02-09 02:20:30,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4231 transitions.
[2022-02-09 02:20:30,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:30,923 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:30,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:30,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628
[2022-02-09 02:20:30,924 INFO L402 AbstractCegarLoop]: === Iteration 630 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:30,924 INFO L85 PathProgramCache]: Analyzing trace with hash -472200137, now seen corresponding path program 625 times
[2022-02-09 02:20:30,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:30,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590427750]
[2022-02-09 02:20:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:30,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:31,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:31,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590427750]
[2022-02-09 02:20:31,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590427750] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:31,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:31,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:31,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346250475]
[2022-02-09 02:20:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:31,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:31,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:31,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:31,041 INFO L87 Difference]: Start difference. First operand 1094 states and 4231 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:31,148 INFO L93 Difference]: Finished difference Result 2083 states and 7547 transitions.
[2022-02-09 02:20:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:31,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:31,152 INFO L225 Difference]: With dead ends: 2083
[2022-02-09 02:20:31,152 INFO L226 Difference]: Without dead ends: 1894
[2022-02-09 02:20:31,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:31,152 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 115 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:31,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 117 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:31,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states.
[2022-02-09 02:20:31,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1124.
[2022-02-09 02:20:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 3.85040071237756) internal successors, (4324), 1123 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 4324 transitions.
[2022-02-09 02:20:31,170 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 4324 transitions. Word has length 25
[2022-02-09 02:20:31,170 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:31,170 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 4324 transitions.
[2022-02-09 02:20:31,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 4324 transitions.
[2022-02-09 02:20:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:31,171 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:31,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:31,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629
[2022-02-09 02:20:31,172 INFO L402 AbstractCegarLoop]: === Iteration 631 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:31,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:31,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1779430165, now seen corresponding path program 626 times
[2022-02-09 02:20:31,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:31,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699585744]
[2022-02-09 02:20:31,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:31,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:31,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:31,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699585744]
[2022-02-09 02:20:31,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699585744] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:31,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:31,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:31,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900837206]
[2022-02-09 02:20:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:31,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:31,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:31,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:31,291 INFO L87 Difference]: Start difference. First operand 1124 states and 4324 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:31,405 INFO L93 Difference]: Finished difference Result 2081 states and 7512 transitions.
[2022-02-09 02:20:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:31,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:31,409 INFO L225 Difference]: With dead ends: 2081
[2022-02-09 02:20:31,409 INFO L226 Difference]: Without dead ends: 1864
[2022-02-09 02:20:31,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:31,409 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:31,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 123 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:31,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states.
[2022-02-09 02:20:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1094.
[2022-02-09 02:20:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.858188472095151) internal successors, (4217), 1093 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4217 transitions.
[2022-02-09 02:20:31,426 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4217 transitions. Word has length 25
[2022-02-09 02:20:31,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:31,427 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4217 transitions.
[2022-02-09 02:20:31,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4217 transitions.
[2022-02-09 02:20:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:31,428 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:31,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:31,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630
[2022-02-09 02:20:31,428 INFO L402 AbstractCegarLoop]: === Iteration 632 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1318997099, now seen corresponding path program 627 times
[2022-02-09 02:20:31,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:31,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447984062]
[2022-02-09 02:20:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:31,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:31,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:31,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447984062]
[2022-02-09 02:20:31,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447984062] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:31,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:31,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:31,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293890613]
[2022-02-09 02:20:31,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:31,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:31,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:31,547 INFO L87 Difference]: Start difference. First operand 1094 states and 4217 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:31,654 INFO L93 Difference]: Finished difference Result 2077 states and 7514 transitions.
[2022-02-09 02:20:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:31,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:31,659 INFO L225 Difference]: With dead ends: 2077
[2022-02-09 02:20:31,659 INFO L226 Difference]: Without dead ends: 1888
[2022-02-09 02:20:31,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:31,659 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:31,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 109 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states.
[2022-02-09 02:20:31,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1122.
[2022-02-09 02:20:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.840321141837645) internal successors, (4305), 1121 states have internal predecessors, (4305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4305 transitions.
[2022-02-09 02:20:31,678 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4305 transitions. Word has length 25
[2022-02-09 02:20:31,678 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:31,678 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4305 transitions.
[2022-02-09 02:20:31,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4305 transitions.
[2022-02-09 02:20:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:31,680 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:31,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:31,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631
[2022-02-09 02:20:31,680 INFO L402 AbstractCegarLoop]: === Iteration 633 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash -126530667, now seen corresponding path program 628 times
[2022-02-09 02:20:31,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:31,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553987550]
[2022-02-09 02:20:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:31,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:31,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:31,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553987550]
[2022-02-09 02:20:31,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553987550] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:31,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:31,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:31,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605354924]
[2022-02-09 02:20:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:31,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:31,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:31,812 INFO L87 Difference]: Start difference. First operand 1122 states and 4305 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:31,933 INFO L93 Difference]: Finished difference Result 2071 states and 7469 transitions.
[2022-02-09 02:20:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:31,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:31,938 INFO L225 Difference]: With dead ends: 2071
[2022-02-09 02:20:31,938 INFO L226 Difference]: Without dead ends: 1860
[2022-02-09 02:20:31,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:31,938 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:31,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 127 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states.
[2022-02-09 02:20:31,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1094.
[2022-02-09 02:20:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.8453796889295515) internal successors, (4203), 1093 states have internal predecessors, (4203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4203 transitions.
[2022-02-09 02:20:31,958 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4203 transitions. Word has length 25
[2022-02-09 02:20:31,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:31,958 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4203 transitions.
[2022-02-09 02:20:31,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4203 transitions.
[2022-02-09 02:20:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:31,959 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:31,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:31,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632
[2022-02-09 02:20:31,960 INFO L402 AbstractCegarLoop]: === Iteration 634 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -336649485, now seen corresponding path program 629 times
[2022-02-09 02:20:31,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:31,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593868597]
[2022-02-09 02:20:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:31,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:32,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:32,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593868597]
[2022-02-09 02:20:32,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593868597] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:32,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:32,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:32,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694064139]
[2022-02-09 02:20:32,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:32,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:32,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:32,076 INFO L87 Difference]: Start difference. First operand 1094 states and 4203 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:32,179 INFO L93 Difference]: Finished difference Result 2073 states and 7490 transitions.
[2022-02-09 02:20:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:32,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:32,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:32,183 INFO L225 Difference]: With dead ends: 2073
[2022-02-09 02:20:32,183 INFO L226 Difference]: Without dead ends: 1886
[2022-02-09 02:20:32,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:32,183 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:32,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 109 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states.
[2022-02-09 02:20:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1122.
[2022-02-09 02:20:32,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8278322925958963) internal successors, (4291), 1121 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4291 transitions.
[2022-02-09 02:20:32,203 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4291 transitions. Word has length 25
[2022-02-09 02:20:32,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:32,203 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4291 transitions.
[2022-02-09 02:20:32,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4291 transitions.
[2022-02-09 02:20:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:32,205 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:32,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:32,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633
[2022-02-09 02:20:32,205 INFO L402 AbstractCegarLoop]: === Iteration 635 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:32,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:32,205 INFO L85 PathProgramCache]: Analyzing trace with hash 744413141, now seen corresponding path program 630 times
[2022-02-09 02:20:32,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:32,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693041039]
[2022-02-09 02:20:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:32,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:32,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:32,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693041039]
[2022-02-09 02:20:32,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693041039] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:32,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:32,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:32,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413819084]
[2022-02-09 02:20:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:32,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:32,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:32,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:32,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:32,322 INFO L87 Difference]: Start difference. First operand 1122 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:32,428 INFO L93 Difference]: Finished difference Result 2069 states and 7450 transitions.
[2022-02-09 02:20:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:32,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:32,432 INFO L225 Difference]: With dead ends: 2069
[2022-02-09 02:20:32,432 INFO L226 Difference]: Without dead ends: 1844
[2022-02-09 02:20:32,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:32,432 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 114 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:32,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 109 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:32,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states.
[2022-02-09 02:20:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1080.
[2022-02-09 02:20:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.854494902687674) internal successors, (4159), 1079 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4159 transitions.
[2022-02-09 02:20:32,451 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4159 transitions. Word has length 25
[2022-02-09 02:20:32,451 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:32,451 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4159 transitions.
[2022-02-09 02:20:32,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4159 transitions.
[2022-02-09 02:20:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:32,453 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:32,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:32,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634
[2022-02-09 02:20:32,453 INFO L402 AbstractCegarLoop]: === Iteration 636 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash 960758839, now seen corresponding path program 631 times
[2022-02-09 02:20:32,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:32,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520366704]
[2022-02-09 02:20:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:32,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:32,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:32,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520366704]
[2022-02-09 02:20:32,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520366704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:32,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:32,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:32,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589698880]
[2022-02-09 02:20:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:32,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:32,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:32,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:32,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:32,572 INFO L87 Difference]: Start difference. First operand 1080 states and 4159 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:32,688 INFO L93 Difference]: Finished difference Result 2170 states and 7829 transitions.
[2022-02-09 02:20:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:32,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:32,692 INFO L225 Difference]: With dead ends: 2170
[2022-02-09 02:20:32,693 INFO L226 Difference]: Without dead ends: 1981
[2022-02-09 02:20:32,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:32,693 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:32,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states.
[2022-02-09 02:20:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1149.
[2022-02-09 02:20:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 3.837108013937282) internal successors, (4405), 1148 states have internal predecessors, (4405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 4405 transitions.
[2022-02-09 02:20:32,712 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 4405 transitions. Word has length 25
[2022-02-09 02:20:32,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:32,712 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 4405 transitions.
[2022-02-09 02:20:32,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 4405 transitions.
[2022-02-09 02:20:32,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:32,714 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:32,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:32,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635
[2022-02-09 02:20:32,714 INFO L402 AbstractCegarLoop]: === Iteration 637 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:32,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:32,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1082578155, now seen corresponding path program 632 times
[2022-02-09 02:20:32,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:32,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627076433]
[2022-02-09 02:20:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:32,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:32,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:32,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627076433]
[2022-02-09 02:20:32,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627076433] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:32,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:32,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:32,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673434564]
[2022-02-09 02:20:32,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:32,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:32,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:32,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:32,832 INFO L87 Difference]: Start difference. First operand 1149 states and 4405 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:32,941 INFO L93 Difference]: Finished difference Result 2168 states and 7794 transitions.
[2022-02-09 02:20:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:32,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:32,945 INFO L225 Difference]: With dead ends: 2168
[2022-02-09 02:20:32,945 INFO L226 Difference]: Without dead ends: 1951
[2022-02-09 02:20:32,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:32,946 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:32,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 110 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states.
[2022-02-09 02:20:32,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1119.
[2022-02-09 02:20:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 3.8434704830053668) internal successors, (4297), 1118 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4297 transitions.
[2022-02-09 02:20:32,963 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4297 transitions. Word has length 25
[2022-02-09 02:20:32,963 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:32,963 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4297 transitions.
[2022-02-09 02:20:32,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4297 transitions.
[2022-02-09 02:20:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:32,965 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:32,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:32,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636
[2022-02-09 02:20:32,965 INFO L402 AbstractCegarLoop]: === Iteration 638 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1386499127, now seen corresponding path program 633 times
[2022-02-09 02:20:32,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:32,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542584232]
[2022-02-09 02:20:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:32,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:33,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:33,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542584232]
[2022-02-09 02:20:33,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542584232] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:33,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:33,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:33,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833657694]
[2022-02-09 02:20:33,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:33,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:33,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:33,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:33,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:33,084 INFO L87 Difference]: Start difference. First operand 1119 states and 4297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:33,202 INFO L93 Difference]: Finished difference Result 2176 states and 7827 transitions.
[2022-02-09 02:20:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:33,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:33,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:33,206 INFO L225 Difference]: With dead ends: 2176
[2022-02-09 02:20:33,206 INFO L226 Difference]: Without dead ends: 1987
[2022-02-09 02:20:33,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:33,206 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 106 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:33,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 111 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:33,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states.
[2022-02-09 02:20:33,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1182.
[2022-02-09 02:20:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1181 states have (on average 3.8137171888230315) internal successors, (4504), 1181 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 4504 transitions.
[2022-02-09 02:20:33,225 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 4504 transitions. Word has length 25
[2022-02-09 02:20:33,225 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:33,225 INFO L470 AbstractCegarLoop]: Abstraction has 1182 states and 4504 transitions.
[2022-02-09 02:20:33,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 4504 transitions.
[2022-02-09 02:20:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:33,227 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:33,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:33,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637
[2022-02-09 02:20:33,227 INFO L402 AbstractCegarLoop]: === Iteration 639 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:33,227 INFO L85 PathProgramCache]: Analyzing trace with hash 830710839, now seen corresponding path program 634 times
[2022-02-09 02:20:33,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:33,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060018649]
[2022-02-09 02:20:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:33,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:33,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:33,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060018649]
[2022-02-09 02:20:33,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060018649] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:33,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:33,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:33,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049836286]
[2022-02-09 02:20:33,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:33,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:33,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:33,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:33,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:33,356 INFO L87 Difference]: Start difference. First operand 1182 states and 4504 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:33,459 INFO L93 Difference]: Finished difference Result 2081 states and 7525 transitions.
[2022-02-09 02:20:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:33,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:33,463 INFO L225 Difference]: With dead ends: 2081
[2022-02-09 02:20:33,463 INFO L226 Difference]: Without dead ends: 1796
[2022-02-09 02:20:33,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:33,463 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:33,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 111 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states.
[2022-02-09 02:20:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1119.
[2022-02-09 02:20:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 3.815742397137746) internal successors, (4266), 1118 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4266 transitions.
[2022-02-09 02:20:33,482 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4266 transitions. Word has length 25
[2022-02-09 02:20:33,482 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:33,482 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4266 transitions.
[2022-02-09 02:20:33,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4266 transitions.
[2022-02-09 02:20:33,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:33,484 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:33,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:33,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638
[2022-02-09 02:20:33,484 INFO L402 AbstractCegarLoop]: === Iteration 640 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:33,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:33,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1926120555, now seen corresponding path program 635 times
[2022-02-09 02:20:33,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:33,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935991367]
[2022-02-09 02:20:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:33,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:33,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:33,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935991367]
[2022-02-09 02:20:33,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935991367] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:33,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:33,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:33,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825450633]
[2022-02-09 02:20:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:33,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:33,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:33,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:33,609 INFO L87 Difference]: Start difference. First operand 1119 states and 4266 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:33,733 INFO L93 Difference]: Finished difference Result 2157 states and 7740 transitions.
[2022-02-09 02:20:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:33,738 INFO L225 Difference]: With dead ends: 2157
[2022-02-09 02:20:33,738 INFO L226 Difference]: Without dead ends: 1970
[2022-02-09 02:20:33,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:33,738 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:33,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 124 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:33,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states.
[2022-02-09 02:20:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1165.
[2022-02-09 02:20:33,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1164 states have (on average 3.799828178694158) internal successors, (4423), 1164 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 4423 transitions.
[2022-02-09 02:20:33,758 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 4423 transitions. Word has length 25
[2022-02-09 02:20:33,758 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:33,758 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 4423 transitions.
[2022-02-09 02:20:33,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 4423 transitions.
[2022-02-09 02:20:33,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:33,759 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:33,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:33,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639
[2022-02-09 02:20:33,760 INFO L402 AbstractCegarLoop]: === Iteration 641 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:33,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash 11457143, now seen corresponding path program 636 times
[2022-02-09 02:20:33,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:33,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369704150]
[2022-02-09 02:20:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:33,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:33,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:33,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369704150]
[2022-02-09 02:20:33,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369704150] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:33,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:33,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:33,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101442833]
[2022-02-09 02:20:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:33,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:33,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:33,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:33,882 INFO L87 Difference]: Start difference. First operand 1165 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:33,984 INFO L93 Difference]: Finished difference Result 2064 states and 7444 transitions.
[2022-02-09 02:20:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:33,988 INFO L225 Difference]: With dead ends: 2064
[2022-02-09 02:20:33,988 INFO L226 Difference]: Without dead ends: 1757
[2022-02-09 02:20:33,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:33,988 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:33,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 110 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:33,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states.
[2022-02-09 02:20:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1080.
[2022-02-09 02:20:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.836886005560704) internal successors, (4140), 1079 states have internal predecessors, (4140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4140 transitions.
[2022-02-09 02:20:34,006 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4140 transitions. Word has length 25
[2022-02-09 02:20:34,006 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:34,006 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4140 transitions.
[2022-02-09 02:20:34,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4140 transitions.
[2022-02-09 02:20:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:34,007 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:34,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:34,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640
[2022-02-09 02:20:34,008 INFO L402 AbstractCegarLoop]: === Iteration 642 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash 104010773, now seen corresponding path program 637 times
[2022-02-09 02:20:34,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:34,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579439005]
[2022-02-09 02:20:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:34,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:34,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:34,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579439005]
[2022-02-09 02:20:34,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579439005] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:34,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:34,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:34,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909456838]
[2022-02-09 02:20:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:34,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:34,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:34,127 INFO L87 Difference]: Start difference. First operand 1080 states and 4140 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:34,243 INFO L93 Difference]: Finished difference Result 2149 states and 7748 transitions.
[2022-02-09 02:20:34,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:34,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:34,247 INFO L225 Difference]: With dead ends: 2149
[2022-02-09 02:20:34,247 INFO L226 Difference]: Without dead ends: 1960
[2022-02-09 02:20:34,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:34,247 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:34,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 119 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:34,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states.
[2022-02-09 02:20:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1138.
[2022-02-09 02:20:34,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.832014072119613) internal successors, (4357), 1137 states have internal predecessors, (4357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4357 transitions.
[2022-02-09 02:20:34,265 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4357 transitions. Word has length 25
[2022-02-09 02:20:34,266 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:34,266 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4357 transitions.
[2022-02-09 02:20:34,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4357 transitions.
[2022-02-09 02:20:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:34,275 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:34,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:34,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641
[2022-02-09 02:20:34,275 INFO L402 AbstractCegarLoop]: === Iteration 643 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:34,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1296477205, now seen corresponding path program 638 times
[2022-02-09 02:20:34,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:34,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4231262]
[2022-02-09 02:20:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:34,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:34,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:34,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4231262]
[2022-02-09 02:20:34,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4231262] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:34,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:34,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:34,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450877415]
[2022-02-09 02:20:34,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:34,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:34,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:34,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:34,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:34,389 INFO L87 Difference]: Start difference. First operand 1138 states and 4357 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:34,507 INFO L93 Difference]: Finished difference Result 2143 states and 7703 transitions.
[2022-02-09 02:20:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:34,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:34,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:34,511 INFO L225 Difference]: With dead ends: 2143
[2022-02-09 02:20:34,512 INFO L226 Difference]: Without dead ends: 1932
[2022-02-09 02:20:34,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:34,512 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:34,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 125 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states.
[2022-02-09 02:20:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1110.
[2022-02-09 02:20:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 3.836789900811542) internal successors, (4255), 1109 states have internal predecessors, (4255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4255 transitions.
[2022-02-09 02:20:34,529 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4255 transitions. Word has length 25
[2022-02-09 02:20:34,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:34,529 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4255 transitions.
[2022-02-09 02:20:34,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4255 transitions.
[2022-02-09 02:20:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:34,531 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:34,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:34,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642
[2022-02-09 02:20:34,531 INFO L402 AbstractCegarLoop]: === Iteration 644 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1206570249, now seen corresponding path program 639 times
[2022-02-09 02:20:34,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:34,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400385432]
[2022-02-09 02:20:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:34,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:34,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:34,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400385432]
[2022-02-09 02:20:34,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400385432] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:34,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:34,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:34,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969287539]
[2022-02-09 02:20:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:34,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:34,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:34,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:34,648 INFO L87 Difference]: Start difference. First operand 1110 states and 4255 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:34,761 INFO L93 Difference]: Finished difference Result 2161 states and 7766 transitions.
[2022-02-09 02:20:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:34,765 INFO L225 Difference]: With dead ends: 2161
[2022-02-09 02:20:34,765 INFO L226 Difference]: Without dead ends: 1972
[2022-02-09 02:20:34,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:34,765 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 105 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:34,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 110 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:34,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states.
[2022-02-09 02:20:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1173.
[2022-02-09 02:20:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 3.8071672354948807) internal successors, (4462), 1172 states have internal predecessors, (4462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 4462 transitions.
[2022-02-09 02:20:34,785 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 4462 transitions. Word has length 25
[2022-02-09 02:20:34,785 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:34,785 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 4462 transitions.
[2022-02-09 02:20:34,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 4462 transitions.
[2022-02-09 02:20:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:34,787 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:34,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:34,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643
[2022-02-09 02:20:34,787 INFO L402 AbstractCegarLoop]: === Iteration 645 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:34,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:34,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1192350699, now seen corresponding path program 640 times
[2022-02-09 02:20:34,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:34,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301415811]
[2022-02-09 02:20:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:34,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:34,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:34,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301415811]
[2022-02-09 02:20:34,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301415811] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:34,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:34,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:34,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361031956]
[2022-02-09 02:20:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:34,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:34,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:34,905 INFO L87 Difference]: Start difference. First operand 1173 states and 4462 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:35,010 INFO L93 Difference]: Finished difference Result 2066 states and 7464 transitions.
[2022-02-09 02:20:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:35,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:35,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:35,015 INFO L225 Difference]: With dead ends: 2066
[2022-02-09 02:20:35,015 INFO L226 Difference]: Without dead ends: 1781
[2022-02-09 02:20:35,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:35,015 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:35,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 116 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states.
[2022-02-09 02:20:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1110.
[2022-02-09 02:20:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 3.8097385031559963) internal successors, (4225), 1109 states have internal predecessors, (4225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4225 transitions.
[2022-02-09 02:20:35,035 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4225 transitions. Word has length 25
[2022-02-09 02:20:35,035 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:35,035 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4225 transitions.
[2022-02-09 02:20:35,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4225 transitions.
[2022-02-09 02:20:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:35,037 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:35,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:35,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644
[2022-02-09 02:20:35,037 INFO L402 AbstractCegarLoop]: === Iteration 646 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -240122859, now seen corresponding path program 641 times
[2022-02-09 02:20:35,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:35,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392489472]
[2022-02-09 02:20:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:35,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:35,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:35,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392489472]
[2022-02-09 02:20:35,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392489472] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:35,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:35,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:35,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307767173]
[2022-02-09 02:20:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:35,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:35,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:35,157 INFO L87 Difference]: Start difference. First operand 1110 states and 4225 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:35,273 INFO L93 Difference]: Finished difference Result 2136 states and 7661 transitions.
[2022-02-09 02:20:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:35,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:35,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:35,277 INFO L225 Difference]: With dead ends: 2136
[2022-02-09 02:20:35,277 INFO L226 Difference]: Without dead ends: 1953
[2022-02-09 02:20:35,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:35,277 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:35,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 115 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states.
[2022-02-09 02:20:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1154.
[2022-02-09 02:20:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 3.7961838681699915) internal successors, (4377), 1153 states have internal predecessors, (4377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 4377 transitions.
[2022-02-09 02:20:35,296 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 4377 transitions. Word has length 25
[2022-02-09 02:20:35,296 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:35,296 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 4377 transitions.
[2022-02-09 02:20:35,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 4377 transitions.
[2022-02-09 02:20:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:35,297 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:35,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:35,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645
[2022-02-09 02:20:35,298 INFO L402 AbstractCegarLoop]: === Iteration 647 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:35,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1309641865, now seen corresponding path program 642 times
[2022-02-09 02:20:35,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:35,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352324073]
[2022-02-09 02:20:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:35,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:35,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:35,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352324073]
[2022-02-09 02:20:35,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352324073] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:35,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:35,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:35,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031213209]
[2022-02-09 02:20:35,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:35,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:35,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:35,418 INFO L87 Difference]: Start difference. First operand 1154 states and 4377 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:35,521 INFO L93 Difference]: Finished difference Result 2047 states and 7379 transitions.
[2022-02-09 02:20:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:35,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:35,524 INFO L225 Difference]: With dead ends: 2047
[2022-02-09 02:20:35,525 INFO L226 Difference]: Without dead ends: 1751
[2022-02-09 02:20:35,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:35,525 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:35,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 114 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states.
[2022-02-09 02:20:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1080.
[2022-02-09 02:20:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.822984244670992) internal successors, (4125), 1079 states have internal predecessors, (4125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4125 transitions.
[2022-02-09 02:20:35,541 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4125 transitions. Word has length 25
[2022-02-09 02:20:35,541 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:35,542 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4125 transitions.
[2022-02-09 02:20:35,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4125 transitions.
[2022-02-09 02:20:35,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:35,543 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:35,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:35,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646
[2022-02-09 02:20:35,543 INFO L402 AbstractCegarLoop]: === Iteration 648 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:35,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1076407283, now seen corresponding path program 643 times
[2022-02-09 02:20:35,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:35,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030294181]
[2022-02-09 02:20:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:35,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:35,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:35,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030294181]
[2022-02-09 02:20:35,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030294181] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:35,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:35,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:35,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198869435]
[2022-02-09 02:20:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:35,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:35,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:35,661 INFO L87 Difference]: Start difference. First operand 1080 states and 4125 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:35,783 INFO L93 Difference]: Finished difference Result 2118 states and 7639 transitions.
[2022-02-09 02:20:35,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:35,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:35,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:35,787 INFO L225 Difference]: With dead ends: 2118
[2022-02-09 02:20:35,788 INFO L226 Difference]: Without dead ends: 1931
[2022-02-09 02:20:35,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:35,788 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:35,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 142 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states.
[2022-02-09 02:20:35,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1130.
[2022-02-09 02:20:35,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 3.821080602302923) internal successors, (4314), 1129 states have internal predecessors, (4314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4314 transitions.
[2022-02-09 02:20:35,806 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4314 transitions. Word has length 25
[2022-02-09 02:20:35,806 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:35,806 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4314 transitions.
[2022-02-09 02:20:35,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4314 transitions.
[2022-02-09 02:20:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:35,808 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:35,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:35,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647
[2022-02-09 02:20:35,808 INFO L402 AbstractCegarLoop]: === Iteration 649 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:35,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2137497387, now seen corresponding path program 644 times
[2022-02-09 02:20:35,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:35,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356726010]
[2022-02-09 02:20:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:35,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:35,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:35,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:35,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356726010]
[2022-02-09 02:20:35,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356726010] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:35,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:35,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:35,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227184181]
[2022-02-09 02:20:35,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:35,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:35,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:35,928 INFO L87 Difference]: Start difference. First operand 1130 states and 4314 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:36,048 INFO L93 Difference]: Finished difference Result 2114 states and 7599 transitions.
[2022-02-09 02:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:36,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:36,054 INFO L225 Difference]: With dead ends: 2114
[2022-02-09 02:20:36,054 INFO L226 Difference]: Without dead ends: 1903
[2022-02-09 02:20:36,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:36,054 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 99 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:36,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 124 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:36,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states.
[2022-02-09 02:20:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1102.
[2022-02-09 02:20:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.8256130790190737) internal successors, (4212), 1101 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4212 transitions.
[2022-02-09 02:20:36,075 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4212 transitions. Word has length 25
[2022-02-09 02:20:36,075 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:36,075 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4212 transitions.
[2022-02-09 02:20:36,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4212 transitions.
[2022-02-09 02:20:36,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:36,077 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:36,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:36,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648
[2022-02-09 02:20:36,077 INFO L402 AbstractCegarLoop]: === Iteration 650 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:36,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:36,077 INFO L85 PathProgramCache]: Analyzing trace with hash -234173739, now seen corresponding path program 645 times
[2022-02-09 02:20:36,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:36,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072171042]
[2022-02-09 02:20:36,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:36,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:36,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:36,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:36,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072171042]
[2022-02-09 02:20:36,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072171042] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:36,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:36,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:36,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184961247]
[2022-02-09 02:20:36,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:36,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:36,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:36,199 INFO L87 Difference]: Start difference. First operand 1102 states and 4212 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:36,311 INFO L93 Difference]: Finished difference Result 2115 states and 7611 transitions.
[2022-02-09 02:20:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:36,315 INFO L225 Difference]: With dead ends: 2115
[2022-02-09 02:20:36,315 INFO L226 Difference]: Without dead ends: 1928
[2022-02-09 02:20:36,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:36,316 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:36,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 111 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states.
[2022-02-09 02:20:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1148.
[2022-02-09 02:20:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.809067131647777) internal successors, (4369), 1147 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4369 transitions.
[2022-02-09 02:20:36,334 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4369 transitions. Word has length 25
[2022-02-09 02:20:36,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:36,334 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4369 transitions.
[2022-02-09 02:20:36,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4369 transitions.
[2022-02-09 02:20:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:36,336 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:36,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:36,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649
[2022-02-09 02:20:36,336 INFO L402 AbstractCegarLoop]: === Iteration 651 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:36,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2021555499, now seen corresponding path program 646 times
[2022-02-09 02:20:36,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:36,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241483663]
[2022-02-09 02:20:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:36,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:36,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:36,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241483663]
[2022-02-09 02:20:36,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241483663] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:36,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:36,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:36,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403236166]
[2022-02-09 02:20:36,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:36,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:36,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:36,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:36,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:36,456 INFO L87 Difference]: Start difference. First operand 1148 states and 4369 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:36,553 INFO L93 Difference]: Finished difference Result 2022 states and 7315 transitions.
[2022-02-09 02:20:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:36,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:36,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:36,557 INFO L225 Difference]: With dead ends: 2022
[2022-02-09 02:20:36,557 INFO L226 Difference]: Without dead ends: 1754
[2022-02-09 02:20:36,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:36,557 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 114 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:36,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 111 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states.
[2022-02-09 02:20:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1102.
[2022-02-09 02:20:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.8056312443233424) internal successors, (4190), 1101 states have internal predecessors, (4190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4190 transitions.
[2022-02-09 02:20:36,575 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4190 transitions. Word has length 25
[2022-02-09 02:20:36,575 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:36,575 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4190 transitions.
[2022-02-09 02:20:36,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4190 transitions.
[2022-02-09 02:20:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:36,576 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:36,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:36,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650
[2022-02-09 02:20:36,577 INFO L402 AbstractCegarLoop]: === Iteration 652 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:36,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:36,577 INFO L85 PathProgramCache]: Analyzing trace with hash 153831223, now seen corresponding path program 647 times
[2022-02-09 02:20:36,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:36,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095729672]
[2022-02-09 02:20:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:36,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:36,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:36,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095729672]
[2022-02-09 02:20:36,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095729672] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:36,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:36,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:36,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460667560]
[2022-02-09 02:20:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:36,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:36,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:36,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:36,699 INFO L87 Difference]: Start difference. First operand 1102 states and 4190 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:36,825 INFO L93 Difference]: Finished difference Result 2109 states and 7570 transitions.
[2022-02-09 02:20:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:36,829 INFO L225 Difference]: With dead ends: 2109
[2022-02-09 02:20:36,829 INFO L226 Difference]: Without dead ends: 1926
[2022-02-09 02:20:36,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:36,830 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:36,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 133 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states.
[2022-02-09 02:20:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1146.
[2022-02-09 02:20:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 3.7921397379912665) internal successors, (4342), 1145 states have internal predecessors, (4342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4342 transitions.
[2022-02-09 02:20:36,860 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4342 transitions. Word has length 25
[2022-02-09 02:20:36,860 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4342 transitions.
[2022-02-09 02:20:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4342 transitions.
[2022-02-09 02:20:36,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:36,862 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:36,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:36,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651
[2022-02-09 02:20:36,862 INFO L402 AbstractCegarLoop]: === Iteration 653 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:36,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1358480405, now seen corresponding path program 648 times
[2022-02-09 02:20:36,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:36,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173752786]
[2022-02-09 02:20:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:36,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:36,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:36,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173752786]
[2022-02-09 02:20:36,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173752786] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:36,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:36,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:36,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857508877]
[2022-02-09 02:20:36,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:36,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:36,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:36,981 INFO L87 Difference]: Start difference. First operand 1146 states and 4342 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:37,076 INFO L93 Difference]: Finished difference Result 2020 states and 7288 transitions.
[2022-02-09 02:20:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:37,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:37,080 INFO L225 Difference]: With dead ends: 2020
[2022-02-09 02:20:37,080 INFO L226 Difference]: Without dead ends: 1709
[2022-02-09 02:20:37,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:37,080 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:37,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 102 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states.
[2022-02-09 02:20:37,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1057.
[2022-02-09 02:20:37,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.847537878787879) internal successors, (4063), 1056 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4063 transitions.
[2022-02-09 02:20:37,097 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4063 transitions. Word has length 25
[2022-02-09 02:20:37,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:37,097 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4063 transitions.
[2022-02-09 02:20:37,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4063 transitions.
[2022-02-09 02:20:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:37,099 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:37,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:37,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652
[2022-02-09 02:20:37,099 INFO L402 AbstractCegarLoop]: === Iteration 654 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:37,099 INFO L85 PathProgramCache]: Analyzing trace with hash 826629269, now seen corresponding path program 649 times
[2022-02-09 02:20:37,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:37,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938876103]
[2022-02-09 02:20:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:37,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:37,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:37,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938876103]
[2022-02-09 02:20:37,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938876103] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:37,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:37,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:37,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56176143]
[2022-02-09 02:20:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:37,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:37,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:37,214 INFO L87 Difference]: Start difference. First operand 1057 states and 4063 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:37,320 INFO L93 Difference]: Finished difference Result 2000 states and 7196 transitions.
[2022-02-09 02:20:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:37,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:37,324 INFO L225 Difference]: With dead ends: 2000
[2022-02-09 02:20:37,324 INFO L226 Difference]: Without dead ends: 1811
[2022-02-09 02:20:37,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:37,324 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:37,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 107 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states.
[2022-02-09 02:20:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1087.
[2022-02-09 02:20:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 3.826887661141805) internal successors, (4156), 1086 states have internal predecessors, (4156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 4156 transitions.
[2022-02-09 02:20:37,344 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 4156 transitions. Word has length 25
[2022-02-09 02:20:37,344 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:37,344 INFO L470 AbstractCegarLoop]: Abstraction has 1087 states and 4156 transitions.
[2022-02-09 02:20:37,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 4156 transitions.
[2022-02-09 02:20:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:37,346 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:37,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:37,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653
[2022-02-09 02:20:37,346 INFO L402 AbstractCegarLoop]: === Iteration 655 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:37,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:37,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1216707725, now seen corresponding path program 650 times
[2022-02-09 02:20:37,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:37,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344667529]
[2022-02-09 02:20:37,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:37,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:37,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:37,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344667529]
[2022-02-09 02:20:37,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344667529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:37,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:37,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:37,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652736093]
[2022-02-09 02:20:37,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:37,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:37,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:37,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:37,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:37,463 INFO L87 Difference]: Start difference. First operand 1087 states and 4156 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:37,600 INFO L93 Difference]: Finished difference Result 1998 states and 7161 transitions.
[2022-02-09 02:20:37,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:37,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:37,605 INFO L225 Difference]: With dead ends: 1998
[2022-02-09 02:20:37,605 INFO L226 Difference]: Without dead ends: 1781
[2022-02-09 02:20:37,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:37,605 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 97 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:37,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 111 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states.
[2022-02-09 02:20:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1057.
[2022-02-09 02:20:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.836174242424242) internal successors, (4051), 1056 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4051 transitions.
[2022-02-09 02:20:37,631 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4051 transitions. Word has length 25
[2022-02-09 02:20:37,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:37,631 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4051 transitions.
[2022-02-09 02:20:37,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4051 transitions.
[2022-02-09 02:20:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:37,633 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:37,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:37,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654
[2022-02-09 02:20:37,634 INFO L402 AbstractCegarLoop]: === Iteration 656 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash 30602389, now seen corresponding path program 651 times
[2022-02-09 02:20:37,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:37,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282053802]
[2022-02-09 02:20:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:37,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:37,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:37,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282053802]
[2022-02-09 02:20:37,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282053802] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:37,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:37,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:37,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637753945]
[2022-02-09 02:20:37,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:37,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:37,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:37,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:37,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:37,783 INFO L87 Difference]: Start difference. First operand 1057 states and 4051 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:37,905 INFO L93 Difference]: Finished difference Result 1982 states and 7121 transitions.
[2022-02-09 02:20:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:37,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:37,908 INFO L225 Difference]: With dead ends: 1982
[2022-02-09 02:20:37,909 INFO L226 Difference]: Without dead ends: 1793
[2022-02-09 02:20:37,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:37,909 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:37,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 106 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:37,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states.
[2022-02-09 02:20:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1081.
[2022-02-09 02:20:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 3.821296296296296) internal successors, (4127), 1080 states have internal predecessors, (4127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4127 transitions.
[2022-02-09 02:20:37,926 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4127 transitions. Word has length 25
[2022-02-09 02:20:37,926 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:37,926 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4127 transitions.
[2022-02-09 02:20:37,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:37,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4127 transitions.
[2022-02-09 02:20:37,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:37,928 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:37,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:37,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655
[2022-02-09 02:20:37,928 INFO L402 AbstractCegarLoop]: === Iteration 657 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash 586390677, now seen corresponding path program 652 times
[2022-02-09 02:20:37,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:37,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112791098]
[2022-02-09 02:20:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:37,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:38,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:38,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112791098]
[2022-02-09 02:20:38,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112791098] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:38,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:38,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:38,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875199253]
[2022-02-09 02:20:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:38,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:38,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:38,047 INFO L87 Difference]: Start difference. First operand 1081 states and 4127 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:38,157 INFO L93 Difference]: Finished difference Result 1968 states and 7052 transitions.
[2022-02-09 02:20:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:38,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:38,161 INFO L225 Difference]: With dead ends: 1968
[2022-02-09 02:20:38,161 INFO L226 Difference]: Without dead ends: 1769
[2022-02-09 02:20:38,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:38,161 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 101 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:38,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 105 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states.
[2022-02-09 02:20:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1057.
[2022-02-09 02:20:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.824810606060606) internal successors, (4039), 1056 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4039 transitions.
[2022-02-09 02:20:38,178 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4039 transitions. Word has length 25
[2022-02-09 02:20:38,178 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:38,178 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4039 transitions.
[2022-02-09 02:20:38,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4039 transitions.
[2022-02-09 02:20:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:38,180 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:38,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:38,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656
[2022-02-09 02:20:38,180 INFO L402 AbstractCegarLoop]: === Iteration 658 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:38,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1012950003, now seen corresponding path program 653 times
[2022-02-09 02:20:38,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:38,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805107449]
[2022-02-09 02:20:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:38,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:38,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:38,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805107449]
[2022-02-09 02:20:38,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805107449] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:38,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:38,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:38,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401913263]
[2022-02-09 02:20:38,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:38,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:38,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:38,298 INFO L87 Difference]: Start difference. First operand 1057 states and 4039 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:38,407 INFO L93 Difference]: Finished difference Result 1978 states and 7099 transitions.
[2022-02-09 02:20:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:38,411 INFO L225 Difference]: With dead ends: 1978
[2022-02-09 02:20:38,411 INFO L226 Difference]: Without dead ends: 1791
[2022-02-09 02:20:38,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:38,411 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 112 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:38,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 119 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states.
[2022-02-09 02:20:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1081.
[2022-02-09 02:20:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 3.810185185185185) internal successors, (4115), 1080 states have internal predecessors, (4115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4115 transitions.
[2022-02-09 02:20:38,429 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4115 transitions. Word has length 25
[2022-02-09 02:20:38,429 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:38,429 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4115 transitions.
[2022-02-09 02:20:38,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4115 transitions.
[2022-02-09 02:20:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:38,431 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:38,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:38,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657
[2022-02-09 02:20:38,431 INFO L402 AbstractCegarLoop]: === Iteration 659 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash 806142037, now seen corresponding path program 654 times
[2022-02-09 02:20:38,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:38,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717334272]
[2022-02-09 02:20:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:38,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:38,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:38,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717334272]
[2022-02-09 02:20:38,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717334272] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:38,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:38,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:38,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017405528]
[2022-02-09 02:20:38,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:38,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:38,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:38,549 INFO L87 Difference]: Start difference. First operand 1081 states and 4115 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:38,652 INFO L93 Difference]: Finished difference Result 1966 states and 7035 transitions.
[2022-02-09 02:20:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:38,656 INFO L225 Difference]: With dead ends: 1966
[2022-02-09 02:20:38,656 INFO L226 Difference]: Without dead ends: 1755
[2022-02-09 02:20:38,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:38,657 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 117 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:38,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:38,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states.
[2022-02-09 02:20:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1045.
[2022-02-09 02:20:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 3.832375478927203) internal successors, (4001), 1044 states have internal predecessors, (4001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 4001 transitions.
[2022-02-09 02:20:38,673 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 4001 transitions. Word has length 25
[2022-02-09 02:20:38,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:38,673 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 4001 transitions.
[2022-02-09 02:20:38,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 4001 transitions.
[2022-02-09 02:20:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:38,675 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:38,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:38,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658
[2022-02-09 02:20:38,675 INFO L402 AbstractCegarLoop]: === Iteration 660 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash 92169079, now seen corresponding path program 655 times
[2022-02-09 02:20:38,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:38,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18395792]
[2022-02-09 02:20:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:38,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:38,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:38,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18395792]
[2022-02-09 02:20:38,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18395792] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:38,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:38,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:38,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015173839]
[2022-02-09 02:20:38,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:38,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:38,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:38,795 INFO L87 Difference]: Start difference. First operand 1045 states and 4001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:38,911 INFO L93 Difference]: Finished difference Result 2066 states and 7395 transitions.
[2022-02-09 02:20:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:38,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:38,915 INFO L225 Difference]: With dead ends: 2066
[2022-02-09 02:20:38,915 INFO L226 Difference]: Without dead ends: 1877
[2022-02-09 02:20:38,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:38,915 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 104 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:38,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 118 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:38,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states.
[2022-02-09 02:20:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1045.
[2022-02-09 02:20:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 3.803639846743295) internal successors, (3971), 1044 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3971 transitions.
[2022-02-09 02:20:38,932 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3971 transitions. Word has length 25
[2022-02-09 02:20:38,932 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:38,932 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 3971 transitions.
[2022-02-09 02:20:38,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3971 transitions.
[2022-02-09 02:20:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:38,933 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:38,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:38,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659
[2022-02-09 02:20:38,934 INFO L402 AbstractCegarLoop]: === Iteration 661 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1951167915, now seen corresponding path program 656 times
[2022-02-09 02:20:38,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:38,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526366217]
[2022-02-09 02:20:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:38,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:39,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:39,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526366217]
[2022-02-09 02:20:39,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526366217] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:39,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:39,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:39,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749499065]
[2022-02-09 02:20:39,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:39,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:39,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:39,055 INFO L87 Difference]: Start difference. First operand 1045 states and 3971 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:39,176 INFO L93 Difference]: Finished difference Result 2064 states and 7360 transitions.
[2022-02-09 02:20:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:39,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:39,181 INFO L225 Difference]: With dead ends: 2064
[2022-02-09 02:20:39,181 INFO L226 Difference]: Without dead ends: 1847
[2022-02-09 02:20:39,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:39,181 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:39,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 123 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states.
[2022-02-09 02:20:39,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1015.
[2022-02-09 02:20:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 3.809664694280079) internal successors, (3863), 1014 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3863 transitions.
[2022-02-09 02:20:39,198 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3863 transitions. Word has length 25
[2022-02-09 02:20:39,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:39,198 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3863 transitions.
[2022-02-09 02:20:39,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3863 transitions.
[2022-02-09 02:20:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:39,200 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:39,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:39,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660
[2022-02-09 02:20:39,200 INFO L402 AbstractCegarLoop]: === Iteration 662 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1450421099, now seen corresponding path program 657 times
[2022-02-09 02:20:39,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:39,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371624704]
[2022-02-09 02:20:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:39,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:39,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:39,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371624704]
[2022-02-09 02:20:39,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371624704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:39,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:39,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:39,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19868544]
[2022-02-09 02:20:39,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:39,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:39,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:39,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:39,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:39,323 INFO L87 Difference]: Start difference. First operand 1015 states and 3863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:39,443 INFO L93 Difference]: Finished difference Result 2072 states and 7393 transitions.
[2022-02-09 02:20:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:39,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:39,448 INFO L225 Difference]: With dead ends: 2072
[2022-02-09 02:20:39,448 INFO L226 Difference]: Without dead ends: 1883
[2022-02-09 02:20:39,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:39,448 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:39,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 117 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states.
[2022-02-09 02:20:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1078.
[2022-02-09 02:20:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 3.7790157845868153) internal successors, (4070), 1077 states have internal predecessors, (4070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 4070 transitions.
[2022-02-09 02:20:39,477 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 4070 transitions. Word has length 25
[2022-02-09 02:20:39,477 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:39,477 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 4070 transitions.
[2022-02-09 02:20:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 4070 transitions.
[2022-02-09 02:20:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:39,479 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:39,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:39,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661
[2022-02-09 02:20:39,479 INFO L402 AbstractCegarLoop]: === Iteration 663 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2006209387, now seen corresponding path program 658 times
[2022-02-09 02:20:39,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:39,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462277530]
[2022-02-09 02:20:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:39,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:39,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:39,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462277530]
[2022-02-09 02:20:39,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462277530] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:39,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:39,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:39,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326730412]
[2022-02-09 02:20:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:39,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:39,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:39,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:39,598 INFO L87 Difference]: Start difference. First operand 1078 states and 4070 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:39,695 INFO L93 Difference]: Finished difference Result 1977 states and 7091 transitions.
[2022-02-09 02:20:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:39,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:39,700 INFO L225 Difference]: With dead ends: 1977
[2022-02-09 02:20:39,700 INFO L226 Difference]: Without dead ends: 1692
[2022-02-09 02:20:39,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:39,700 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 112 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:39,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 100 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states.
[2022-02-09 02:20:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1015.
[2022-02-09 02:20:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 3.7790927021696255) internal successors, (3832), 1014 states have internal predecessors, (3832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3832 transitions.
[2022-02-09 02:20:39,719 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3832 transitions. Word has length 25
[2022-02-09 02:20:39,719 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:39,719 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3832 transitions.
[2022-02-09 02:20:39,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3832 transitions.
[2022-02-09 02:20:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:39,720 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:39,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:39,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662
[2022-02-09 02:20:39,721 INFO L402 AbstractCegarLoop]: === Iteration 664 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash -468073485, now seen corresponding path program 659 times
[2022-02-09 02:20:39,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:39,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241713902]
[2022-02-09 02:20:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:39,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:39,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:39,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241713902]
[2022-02-09 02:20:39,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241713902] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:39,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:39,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:39,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703882630]
[2022-02-09 02:20:39,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:39,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:39,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:39,837 INFO L87 Difference]: Start difference. First operand 1015 states and 3832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:39,960 INFO L93 Difference]: Finished difference Result 2053 states and 7306 transitions.
[2022-02-09 02:20:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:39,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:39,964 INFO L225 Difference]: With dead ends: 2053
[2022-02-09 02:20:39,964 INFO L226 Difference]: Without dead ends: 1866
[2022-02-09 02:20:39,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:39,964 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 99 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:39,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 123 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states.
[2022-02-09 02:20:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1061.
[2022-02-09 02:20:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 3.763207547169811) internal successors, (3989), 1060 states have internal predecessors, (3989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 3989 transitions.
[2022-02-09 02:20:39,983 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 3989 transitions. Word has length 25
[2022-02-09 02:20:39,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:39,983 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 3989 transitions.
[2022-02-09 02:20:39,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 3989 transitions.
[2022-02-09 02:20:39,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:39,985 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:39,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:39,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663
[2022-02-09 02:20:39,985 INFO L402 AbstractCegarLoop]: === Iteration 665 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:39,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1469504213, now seen corresponding path program 660 times
[2022-02-09 02:20:39,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:39,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245919088]
[2022-02-09 02:20:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:39,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:40,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:40,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:40,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245919088]
[2022-02-09 02:20:40,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245919088] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:40,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:40,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:40,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392665301]
[2022-02-09 02:20:40,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:40,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:40,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:40,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:40,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:40,105 INFO L87 Difference]: Start difference. First operand 1061 states and 3989 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:40,208 INFO L93 Difference]: Finished difference Result 1960 states and 7010 transitions.
[2022-02-09 02:20:40,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:40,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:40,212 INFO L225 Difference]: With dead ends: 1960
[2022-02-09 02:20:40,212 INFO L226 Difference]: Without dead ends: 1653
[2022-02-09 02:20:40,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:40,212 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:40,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 111 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states.
[2022-02-09 02:20:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 976.
[2022-02-09 02:20:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 3.802051282051282) internal successors, (3707), 975 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3707 transitions.
[2022-02-09 02:20:40,228 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3707 transitions. Word has length 25
[2022-02-09 02:20:40,228 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:40,228 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3707 transitions.
[2022-02-09 02:20:40,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,229 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3707 transitions.
[2022-02-09 02:20:40,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:40,230 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:40,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:40,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664
[2022-02-09 02:20:40,230 INFO L402 AbstractCegarLoop]: === Iteration 666 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:40,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1145126037, now seen corresponding path program 661 times
[2022-02-09 02:20:40,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:40,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234695185]
[2022-02-09 02:20:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:40,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:40,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:40,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234695185]
[2022-02-09 02:20:40,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234695185] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:40,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:40,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:40,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784424151]
[2022-02-09 02:20:40,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:40,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:40,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:40,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:40,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:40,349 INFO L87 Difference]: Start difference. First operand 976 states and 3707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:40,455 INFO L93 Difference]: Finished difference Result 1957 states and 6997 transitions.
[2022-02-09 02:20:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:40,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:40,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:40,460 INFO L225 Difference]: With dead ends: 1957
[2022-02-09 02:20:40,460 INFO L226 Difference]: Without dead ends: 1768
[2022-02-09 02:20:40,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:40,460 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 108 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:40,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 108 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states.
[2022-02-09 02:20:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1028.
[2022-02-09 02:20:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1027 states have (on average 3.8003894839337877) internal successors, (3903), 1027 states have internal predecessors, (3903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 3903 transitions.
[2022-02-09 02:20:40,477 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 3903 transitions. Word has length 25
[2022-02-09 02:20:40,477 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:40,477 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 3903 transitions.
[2022-02-09 02:20:40,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 3903 transitions.
[2022-02-09 02:20:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:40,479 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:40,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:40,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665
[2022-02-09 02:20:40,479 INFO L402 AbstractCegarLoop]: === Iteration 667 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:40,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1700914325, now seen corresponding path program 662 times
[2022-02-09 02:20:40,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:40,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147483307]
[2022-02-09 02:20:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:40,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:40,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:40,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147483307]
[2022-02-09 02:20:40,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147483307] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:40,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:40,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:40,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428424018]
[2022-02-09 02:20:40,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:40,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:40,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:40,597 INFO L87 Difference]: Start difference. First operand 1028 states and 3903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:40,697 INFO L93 Difference]: Finished difference Result 1943 states and 6928 transitions.
[2022-02-09 02:20:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:40,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:40,701 INFO L225 Difference]: With dead ends: 1943
[2022-02-09 02:20:40,701 INFO L226 Difference]: Without dead ends: 1744
[2022-02-09 02:20:40,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:40,701 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:40,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 99 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states.
[2022-02-09 02:20:40,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1004.
[2022-02-09 02:20:40,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 3.8035892323030907) internal successors, (3815), 1003 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3815 transitions.
[2022-02-09 02:20:40,717 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3815 transitions. Word has length 25
[2022-02-09 02:20:40,717 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:40,717 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3815 transitions.
[2022-02-09 02:20:40,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3815 transitions.
[2022-02-09 02:20:40,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:40,719 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:40,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:40,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666
[2022-02-09 02:20:40,719 INFO L402 AbstractCegarLoop]: === Iteration 668 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:40,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:40,719 INFO L85 PathProgramCache]: Analyzing trace with hash 527602679, now seen corresponding path program 663 times
[2022-02-09 02:20:40,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:40,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589178171]
[2022-02-09 02:20:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:40,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:40,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:40,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589178171]
[2022-02-09 02:20:40,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589178171] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:40,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:40,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:40,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434973176]
[2022-02-09 02:20:40,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:40,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:40,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:40,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:40,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:40,837 INFO L87 Difference]: Start difference. First operand 1004 states and 3815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:40,945 INFO L93 Difference]: Finished difference Result 1918 states and 6823 transitions.
[2022-02-09 02:20:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:40,949 INFO L225 Difference]: With dead ends: 1918
[2022-02-09 02:20:40,949 INFO L226 Difference]: Without dead ends: 1729
[2022-02-09 02:20:40,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:40,949 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 125 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:40,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 107 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states.
[2022-02-09 02:20:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1067.
[2022-02-09 02:20:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1066 states have (on average 3.772983114446529) internal successors, (4022), 1066 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 4022 transitions.
[2022-02-09 02:20:40,966 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 4022 transitions. Word has length 25
[2022-02-09 02:20:40,966 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:40,966 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 4022 transitions.
[2022-02-09 02:20:40,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 4022 transitions.
[2022-02-09 02:20:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:40,968 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:40,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:40,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667
[2022-02-09 02:20:40,968 INFO L402 AbstractCegarLoop]: === Iteration 669 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:40,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1811104917, now seen corresponding path program 664 times
[2022-02-09 02:20:40,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:40,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14779557]
[2022-02-09 02:20:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:40,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:41,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:41,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14779557]
[2022-02-09 02:20:41,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14779557] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:41,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:41,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:41,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120011277]
[2022-02-09 02:20:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:41,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:41,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:41,091 INFO L87 Difference]: Start difference. First operand 1067 states and 4022 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:41,200 INFO L93 Difference]: Finished difference Result 1823 states and 6521 transitions.
[2022-02-09 02:20:41,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:41,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:41,204 INFO L225 Difference]: With dead ends: 1823
[2022-02-09 02:20:41,204 INFO L226 Difference]: Without dead ends: 1538
[2022-02-09 02:20:41,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:41,204 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:41,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 125 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:41,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states.
[2022-02-09 02:20:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1004.
[2022-02-09 02:20:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 3.7756729810568297) internal successors, (3787), 1003 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3787 transitions.
[2022-02-09 02:20:41,220 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3787 transitions. Word has length 25
[2022-02-09 02:20:41,220 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:41,220 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3787 transitions.
[2022-02-09 02:20:41,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3787 transitions.
[2022-02-09 02:20:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:41,222 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:41,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:41,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668
[2022-02-09 02:20:41,222 INFO L402 AbstractCegarLoop]: === Iteration 670 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:41,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash 164314261, now seen corresponding path program 665 times
[2022-02-09 02:20:41,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:41,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947860712]
[2022-02-09 02:20:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:41,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:41,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:41,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947860712]
[2022-02-09 02:20:41,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947860712] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:41,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:41,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:41,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662521361]
[2022-02-09 02:20:41,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:41,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:41,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:41,368 INFO L87 Difference]: Start difference. First operand 1004 states and 3787 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:41,512 INFO L93 Difference]: Finished difference Result 1753 states and 6291 transitions.
[2022-02-09 02:20:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:41,517 INFO L225 Difference]: With dead ends: 1753
[2022-02-09 02:20:41,517 INFO L226 Difference]: Without dead ends: 1578
[2022-02-09 02:20:41,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:41,518 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 94 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:41,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 121 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states.
[2022-02-09 02:20:41,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1044.
[2022-02-09 02:20:41,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 3.7651006711409396) internal successors, (3927), 1043 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3927 transitions.
[2022-02-09 02:20:41,541 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3927 transitions. Word has length 25
[2022-02-09 02:20:41,541 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:41,541 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 3927 transitions.
[2022-02-09 02:20:41,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3927 transitions.
[2022-02-09 02:20:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:41,543 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:41,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:41,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669
[2022-02-09 02:20:41,544 INFO L402 AbstractCegarLoop]: === Iteration 671 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 382665847, now seen corresponding path program 666 times
[2022-02-09 02:20:41,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:41,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849761114]
[2022-02-09 02:20:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:41,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:41,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:41,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849761114]
[2022-02-09 02:20:41,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849761114] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:41,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:41,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:41,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824776024]
[2022-02-09 02:20:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:41,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:41,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:41,710 INFO L87 Difference]: Start difference. First operand 1044 states and 3927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:41,821 INFO L93 Difference]: Finished difference Result 1577 states and 5706 transitions.
[2022-02-09 02:20:41,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:41,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:41,824 INFO L225 Difference]: With dead ends: 1577
[2022-02-09 02:20:41,824 INFO L226 Difference]: Without dead ends: 1287
[2022-02-09 02:20:41,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:41,824 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 89 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:41,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 110 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:41,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states.
[2022-02-09 02:20:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 976.
[2022-02-09 02:20:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 3.787692307692308) internal successors, (3693), 975 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3693 transitions.
[2022-02-09 02:20:41,838 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3693 transitions. Word has length 25
[2022-02-09 02:20:41,838 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:41,838 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3693 transitions.
[2022-02-09 02:20:41,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3693 transitions.
[2022-02-09 02:20:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:41,840 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:41,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:41,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670
[2022-02-09 02:20:41,840 INFO L402 AbstractCegarLoop]: === Iteration 672 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:41,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2117522547, now seen corresponding path program 667 times
[2022-02-09 02:20:41,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:41,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260943375]
[2022-02-09 02:20:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:41,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:41,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:41,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260943375]
[2022-02-09 02:20:41,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260943375] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:41,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:41,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:41,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646747558]
[2022-02-09 02:20:41,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:41,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:41,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:41,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:41,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:41,962 INFO L87 Difference]: Start difference. First operand 976 states and 3693 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:42,073 INFO L93 Difference]: Finished difference Result 1928 states and 6894 transitions.
[2022-02-09 02:20:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:42,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:42,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:42,077 INFO L225 Difference]: With dead ends: 1928
[2022-02-09 02:20:42,077 INFO L226 Difference]: Without dead ends: 1741
[2022-02-09 02:20:42,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:42,077 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:42,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 123 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:42,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states.
[2022-02-09 02:20:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1020.
[2022-02-09 02:20:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1019 states have (on average 3.78900883218842) internal successors, (3861), 1019 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 3861 transitions.
[2022-02-09 02:20:42,094 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 3861 transitions. Word has length 25
[2022-02-09 02:20:42,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:42,094 INFO L470 AbstractCegarLoop]: Abstraction has 1020 states and 3861 transitions.
[2022-02-09 02:20:42,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 3861 transitions.
[2022-02-09 02:20:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:42,096 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:42,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:42,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671
[2022-02-09 02:20:42,096 INFO L402 AbstractCegarLoop]: === Iteration 673 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:42,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1910714581, now seen corresponding path program 668 times
[2022-02-09 02:20:42,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:42,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135419192]
[2022-02-09 02:20:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:42,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:42,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:42,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135419192]
[2022-02-09 02:20:42,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135419192] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:42,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:42,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:42,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314605431]
[2022-02-09 02:20:42,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:42,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:42,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:42,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:42,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:42,220 INFO L87 Difference]: Start difference. First operand 1020 states and 3861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:42,345 INFO L93 Difference]: Finished difference Result 1916 states and 6830 transitions.
[2022-02-09 02:20:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:42,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:42,350 INFO L225 Difference]: With dead ends: 1916
[2022-02-09 02:20:42,350 INFO L226 Difference]: Without dead ends: 1717
[2022-02-09 02:20:42,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:42,350 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 91 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:42,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 139 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:42,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states.
[2022-02-09 02:20:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 996.
[2022-02-09 02:20:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 995 states have (on average 3.791959798994975) internal successors, (3773), 995 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3773 transitions.
[2022-02-09 02:20:42,368 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3773 transitions. Word has length 25
[2022-02-09 02:20:42,368 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:42,368 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3773 transitions.
[2022-02-09 02:20:42,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3773 transitions.
[2022-02-09 02:20:42,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:42,370 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:42,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:42,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672
[2022-02-09 02:20:42,370 INFO L402 AbstractCegarLoop]: === Iteration 674 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1499999189, now seen corresponding path program 669 times
[2022-02-09 02:20:42,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:42,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912872812]
[2022-02-09 02:20:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:42,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:42,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:42,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912872812]
[2022-02-09 02:20:42,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912872812] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:42,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:42,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:42,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661621807]
[2022-02-09 02:20:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:42,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:42,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:42,486 INFO L87 Difference]: Start difference. First operand 996 states and 3773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:42,593 INFO L93 Difference]: Finished difference Result 1891 states and 6725 transitions.
[2022-02-09 02:20:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:42,597 INFO L225 Difference]: With dead ends: 1891
[2022-02-09 02:20:42,597 INFO L226 Difference]: Without dead ends: 1704
[2022-02-09 02:20:42,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:42,597 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:42,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 119 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states.
[2022-02-09 02:20:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1042.
[2022-02-09 02:20:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 3.7752161383285303) internal successors, (3930), 1041 states have internal predecessors, (3930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3930 transitions.
[2022-02-09 02:20:42,613 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3930 transitions. Word has length 25
[2022-02-09 02:20:42,613 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:42,613 INFO L470 AbstractCegarLoop]: Abstraction has 1042 states and 3930 transitions.
[2022-02-09 02:20:42,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3930 transitions.
[2022-02-09 02:20:42,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:42,615 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:42,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:42,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673
[2022-02-09 02:20:42,615 INFO L402 AbstractCegarLoop]: === Iteration 675 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash 981900117, now seen corresponding path program 670 times
[2022-02-09 02:20:42,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:42,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373661447]
[2022-02-09 02:20:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:42,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:42,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:42,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373661447]
[2022-02-09 02:20:42,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373661447] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:42,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:42,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:42,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194238272]
[2022-02-09 02:20:42,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:42,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:42,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:42,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:42,733 INFO L87 Difference]: Start difference. First operand 1042 states and 3930 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:42,829 INFO L93 Difference]: Finished difference Result 1798 states and 6429 transitions.
[2022-02-09 02:20:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:42,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:42,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:42,833 INFO L225 Difference]: With dead ends: 1798
[2022-02-09 02:20:42,833 INFO L226 Difference]: Without dead ends: 1530
[2022-02-09 02:20:42,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:42,833 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:42,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 120 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states.
[2022-02-09 02:20:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 996.
[2022-02-09 02:20:42,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 995 states have (on average 3.771859296482412) internal successors, (3753), 995 states have internal predecessors, (3753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3753 transitions.
[2022-02-09 02:20:42,848 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3753 transitions. Word has length 25
[2022-02-09 02:20:42,848 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:42,848 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3753 transitions.
[2022-02-09 02:20:42,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3753 transitions.
[2022-02-09 02:20:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:42,850 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:42,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:42,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674
[2022-02-09 02:20:42,850 INFO L402 AbstractCegarLoop]: === Iteration 676 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:42,850 INFO L85 PathProgramCache]: Analyzing trace with hash -92924105, now seen corresponding path program 671 times
[2022-02-09 02:20:42,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:42,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718104030]
[2022-02-09 02:20:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:42,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:42,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:42,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718104030]
[2022-02-09 02:20:42,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718104030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:42,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:42,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:42,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478319434]
[2022-02-09 02:20:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:42,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:42,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:42,966 INFO L87 Difference]: Start difference. First operand 996 states and 3753 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:43,074 INFO L93 Difference]: Finished difference Result 1745 states and 6257 transitions.
[2022-02-09 02:20:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:43,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:43,078 INFO L225 Difference]: With dead ends: 1745
[2022-02-09 02:20:43,078 INFO L226 Difference]: Without dead ends: 1570
[2022-02-09 02:20:43,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:43,078 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 101 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:43,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 110 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states.
[2022-02-09 02:20:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1036.
[2022-02-09 02:20:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1035 states have (on average 3.761352657004831) internal successors, (3893), 1035 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 3893 transitions.
[2022-02-09 02:20:43,094 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 3893 transitions. Word has length 25
[2022-02-09 02:20:43,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:43,094 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 3893 transitions.
[2022-02-09 02:20:43,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 3893 transitions.
[2022-02-09 02:20:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:43,095 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:43,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:43,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675
[2022-02-09 02:20:43,096 INFO L402 AbstractCegarLoop]: === Iteration 677 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1913959531, now seen corresponding path program 672 times
[2022-02-09 02:20:43,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:43,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805934612]
[2022-02-09 02:20:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:43,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:43,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:43,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805934612]
[2022-02-09 02:20:43,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805934612] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:43,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:43,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:43,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250752750]
[2022-02-09 02:20:43,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:43,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:43,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:43,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:43,213 INFO L87 Difference]: Start difference. First operand 1036 states and 3893 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:43,310 INFO L93 Difference]: Finished difference Result 1569 states and 5672 transitions.
[2022-02-09 02:20:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:43,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:43,313 INFO L225 Difference]: With dead ends: 1569
[2022-02-09 02:20:43,313 INFO L226 Difference]: Without dead ends: 1269
[2022-02-09 02:20:43,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:43,314 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 83 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:43,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 113 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states.
[2022-02-09 02:20:43,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 958.
[2022-02-09 02:20:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.806687565308255) internal successors, (3643), 957 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3643 transitions.
[2022-02-09 02:20:43,327 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3643 transitions. Word has length 25
[2022-02-09 02:20:43,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:43,327 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3643 transitions.
[2022-02-09 02:20:43,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3643 transitions.
[2022-02-09 02:20:43,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:43,329 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:43,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:43,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676
[2022-02-09 02:20:43,329 INFO L402 AbstractCegarLoop]: === Iteration 678 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:43,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1003195149, now seen corresponding path program 673 times
[2022-02-09 02:20:43,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:43,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684453630]
[2022-02-09 02:20:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:43,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:43,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:43,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684453630]
[2022-02-09 02:20:43,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684453630] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:43,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:43,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:43,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218839147]
[2022-02-09 02:20:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:43,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:43,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:43,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:43,446 INFO L87 Difference]: Start difference. First operand 958 states and 3643 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:43,546 INFO L93 Difference]: Finished difference Result 1805 states and 6424 transitions.
[2022-02-09 02:20:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:43,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:43,550 INFO L225 Difference]: With dead ends: 1805
[2022-02-09 02:20:43,550 INFO L226 Difference]: Without dead ends: 1616
[2022-02-09 02:20:43,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:43,550 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:43,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 104 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:43,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states.
[2022-02-09 02:20:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 986.
[2022-02-09 02:20:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 3.7878172588832486) internal successors, (3731), 985 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 3731 transitions.
[2022-02-09 02:20:43,567 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 3731 transitions. Word has length 25
[2022-02-09 02:20:43,567 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:43,567 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 3731 transitions.
[2022-02-09 02:20:43,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 3731 transitions.
[2022-02-09 02:20:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:43,569 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:43,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:43,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677
[2022-02-09 02:20:43,569 INFO L402 AbstractCegarLoop]: === Iteration 679 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 189271283, now seen corresponding path program 674 times
[2022-02-09 02:20:43,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:43,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816033962]
[2022-02-09 02:20:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:43,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:43,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:43,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816033962]
[2022-02-09 02:20:43,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816033962] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:43,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:43,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:43,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870599650]
[2022-02-09 02:20:43,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:43,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:43,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:43,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:43,686 INFO L87 Difference]: Start difference. First operand 986 states and 3731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:43,785 INFO L93 Difference]: Finished difference Result 1799 states and 6379 transitions.
[2022-02-09 02:20:43,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:43,789 INFO L225 Difference]: With dead ends: 1799
[2022-02-09 02:20:43,789 INFO L226 Difference]: Without dead ends: 1588
[2022-02-09 02:20:43,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:43,789 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 118 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:43,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 106 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states.
[2022-02-09 02:20:43,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 958.
[2022-02-09 02:20:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.794148380355277) internal successors, (3631), 957 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3631 transitions.
[2022-02-09 02:20:43,805 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3631 transitions. Word has length 25
[2022-02-09 02:20:43,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:43,805 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3631 transitions.
[2022-02-09 02:20:43,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3631 transitions.
[2022-02-09 02:20:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:43,806 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:43,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:43,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678
[2022-02-09 02:20:43,806 INFO L402 AbstractCegarLoop]: === Iteration 680 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:43,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1484097195, now seen corresponding path program 675 times
[2022-02-09 02:20:43,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:43,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183338062]
[2022-02-09 02:20:43,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:43,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:43,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:43,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183338062]
[2022-02-09 02:20:43,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183338062] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:43,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:43,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:43,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634683023]
[2022-02-09 02:20:43,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:43,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:43,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:43,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:43,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:43,956 INFO L87 Difference]: Start difference. First operand 958 states and 3631 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:44,068 INFO L93 Difference]: Finished difference Result 1793 states and 6368 transitions.
[2022-02-09 02:20:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:44,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:44,071 INFO L225 Difference]: With dead ends: 1793
[2022-02-09 02:20:44,071 INFO L226 Difference]: Without dead ends: 1604
[2022-02-09 02:20:44,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:44,071 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 111 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:44,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 115 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states.
[2022-02-09 02:20:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 982.
[2022-02-09 02:20:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 3.778797145769623) internal successors, (3707), 981 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3707 transitions.
[2022-02-09 02:20:44,087 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3707 transitions. Word has length 25
[2022-02-09 02:20:44,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:44,087 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3707 transitions.
[2022-02-09 02:20:44,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3707 transitions.
[2022-02-09 02:20:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:44,088 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:44,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:44,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679
[2022-02-09 02:20:44,089 INFO L402 AbstractCegarLoop]: === Iteration 681 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1885220083, now seen corresponding path program 676 times
[2022-02-09 02:20:44,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:44,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810363068]
[2022-02-09 02:20:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:44,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:44,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:44,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810363068]
[2022-02-09 02:20:44,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810363068] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:44,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:44,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:44,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017708180]
[2022-02-09 02:20:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:44,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:44,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:44,208 INFO L87 Difference]: Start difference. First operand 982 states and 3707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:44,319 INFO L93 Difference]: Finished difference Result 1779 states and 6299 transitions.
[2022-02-09 02:20:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:44,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:44,323 INFO L225 Difference]: With dead ends: 1779
[2022-02-09 02:20:44,323 INFO L226 Difference]: Without dead ends: 1580
[2022-02-09 02:20:44,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:44,323 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:44,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 114 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states.
[2022-02-09 02:20:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 958.
[2022-02-09 02:20:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.781609195402299) internal successors, (3619), 957 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3619 transitions.
[2022-02-09 02:20:44,338 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3619 transitions. Word has length 25
[2022-02-09 02:20:44,338 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:44,338 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3619 transitions.
[2022-02-09 02:20:44,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3619 transitions.
[2022-02-09 02:20:44,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:44,339 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:44,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:44,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680
[2022-02-09 02:20:44,340 INFO L402 AbstractCegarLoop]: === Iteration 682 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:44,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1725871347, now seen corresponding path program 677 times
[2022-02-09 02:20:44,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:44,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728165760]
[2022-02-09 02:20:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:44,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:44,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:44,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:44,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728165760]
[2022-02-09 02:20:44,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728165760] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:44,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:44,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:44,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42192487]
[2022-02-09 02:20:44,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:44,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:44,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:44,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:44,462 INFO L87 Difference]: Start difference. First operand 958 states and 3619 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:44,562 INFO L93 Difference]: Finished difference Result 1781 states and 6322 transitions.
[2022-02-09 02:20:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:44,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:44,566 INFO L225 Difference]: With dead ends: 1781
[2022-02-09 02:20:44,567 INFO L226 Difference]: Without dead ends: 1598
[2022-02-09 02:20:44,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:44,567 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 122 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:44,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 106 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states.
[2022-02-09 02:20:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 982.
[2022-02-09 02:20:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 3.7665647298674823) internal successors, (3695), 981 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3695 transitions.
[2022-02-09 02:20:44,584 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3695 transitions. Word has length 25
[2022-02-09 02:20:44,584 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:44,584 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3695 transitions.
[2022-02-09 02:20:44,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3695 transitions.
[2022-02-09 02:20:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:44,585 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:44,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:44,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681
[2022-02-09 02:20:44,585 INFO L402 AbstractCegarLoop]: === Iteration 683 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:44,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1488033323, now seen corresponding path program 678 times
[2022-02-09 02:20:44,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:44,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133986959]
[2022-02-09 02:20:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:44,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:44,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:44,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133986959]
[2022-02-09 02:20:44,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133986959] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:44,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:44,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:44,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409701455]
[2022-02-09 02:20:44,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:44,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:44,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:44,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:44,707 INFO L87 Difference]: Start difference. First operand 982 states and 3695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:44,815 INFO L93 Difference]: Finished difference Result 1773 states and 6270 transitions.
[2022-02-09 02:20:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:44,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:44,818 INFO L225 Difference]: With dead ends: 1773
[2022-02-09 02:20:44,819 INFO L226 Difference]: Without dead ends: 1562
[2022-02-09 02:20:44,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:44,819 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 96 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:44,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 105 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:44,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states.
[2022-02-09 02:20:44,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 946.
[2022-02-09 02:20:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 3.7894179894179896) internal successors, (3581), 945 states have internal predecessors, (3581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3581 transitions.
[2022-02-09 02:20:44,846 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3581 transitions. Word has length 25
[2022-02-09 02:20:44,846 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:44,846 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3581 transitions.
[2022-02-09 02:20:44,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3581 transitions.
[2022-02-09 02:20:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:44,847 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:44,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:44,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682
[2022-02-09 02:20:44,848 INFO L402 AbstractCegarLoop]: === Iteration 684 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1737655339, now seen corresponding path program 679 times
[2022-02-09 02:20:44,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:44,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511362004]
[2022-02-09 02:20:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:44,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:44,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:44,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511362004]
[2022-02-09 02:20:44,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511362004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:44,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:44,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:44,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28141045]
[2022-02-09 02:20:44,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:44,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:44,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:44,963 INFO L87 Difference]: Start difference. First operand 946 states and 3581 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:45,073 INFO L93 Difference]: Finished difference Result 1832 states and 6485 transitions.
[2022-02-09 02:20:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:45,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:45,077 INFO L225 Difference]: With dead ends: 1832
[2022-02-09 02:20:45,077 INFO L226 Difference]: Without dead ends: 1643
[2022-02-09 02:20:45,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:45,078 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 120 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:45,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 119 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states.
[2022-02-09 02:20:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 946.
[2022-02-09 02:20:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 3.75978835978836) internal successors, (3553), 945 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3553 transitions.
[2022-02-09 02:20:45,093 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3553 transitions. Word has length 25
[2022-02-09 02:20:45,093 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:45,094 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3553 transitions.
[2022-02-09 02:20:45,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3553 transitions.
[2022-02-09 02:20:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:45,095 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:45,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:45,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683
[2022-02-09 02:20:45,095 INFO L402 AbstractCegarLoop]: === Iteration 685 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:45,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash -545188907, now seen corresponding path program 680 times
[2022-02-09 02:20:45,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:45,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425077921]
[2022-02-09 02:20:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:45,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:45,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:45,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425077921]
[2022-02-09 02:20:45,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425077921] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:45,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:45,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:45,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809315870]
[2022-02-09 02:20:45,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:45,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:45,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:45,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:45,211 INFO L87 Difference]: Start difference. First operand 946 states and 3553 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:45,315 INFO L93 Difference]: Finished difference Result 1826 states and 6440 transitions.
[2022-02-09 02:20:45,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:45,319 INFO L225 Difference]: With dead ends: 1826
[2022-02-09 02:20:45,319 INFO L226 Difference]: Without dead ends: 1615
[2022-02-09 02:20:45,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:45,320 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 106 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:45,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 107 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states.
[2022-02-09 02:20:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 918.
[2022-02-09 02:20:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 3.763358778625954) internal successors, (3451), 917 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3451 transitions.
[2022-02-09 02:20:45,335 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3451 transitions. Word has length 25
[2022-02-09 02:20:45,335 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:45,335 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3451 transitions.
[2022-02-09 02:20:45,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3451 transitions.
[2022-02-09 02:20:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:45,336 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:45,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:45,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684
[2022-02-09 02:20:45,337 INFO L402 AbstractCegarLoop]: === Iteration 686 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:45,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -721599531, now seen corresponding path program 681 times
[2022-02-09 02:20:45,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:45,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307618933]
[2022-02-09 02:20:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:45,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:45,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:45,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307618933]
[2022-02-09 02:20:45,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307618933] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:45,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:45,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:45,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064650957]
[2022-02-09 02:20:45,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:45,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:45,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:45,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:45,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:45,455 INFO L87 Difference]: Start difference. First operand 918 states and 3451 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:45,567 INFO L93 Difference]: Finished difference Result 1844 states and 6503 transitions.
[2022-02-09 02:20:45,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:45,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:45,571 INFO L225 Difference]: With dead ends: 1844
[2022-02-09 02:20:45,571 INFO L226 Difference]: Without dead ends: 1655
[2022-02-09 02:20:45,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:45,571 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 125 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:45,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 120 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states.
[2022-02-09 02:20:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 981.
[2022-02-09 02:20:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 3.73265306122449) internal successors, (3658), 980 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 3658 transitions.
[2022-02-09 02:20:45,588 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 3658 transitions. Word has length 25
[2022-02-09 02:20:45,588 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:45,588 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 3658 transitions.
[2022-02-09 02:20:45,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 3658 transitions.
[2022-02-09 02:20:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:45,589 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:45,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:45,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685
[2022-02-09 02:20:45,590 INFO L402 AbstractCegarLoop]: === Iteration 687 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash -707379981, now seen corresponding path program 682 times
[2022-02-09 02:20:45,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:45,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132785300]
[2022-02-09 02:20:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:45,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:45,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:45,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132785300]
[2022-02-09 02:20:45,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132785300] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:45,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:45,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:45,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061747411]
[2022-02-09 02:20:45,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:45,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:45,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:45,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:45,712 INFO L87 Difference]: Start difference. First operand 981 states and 3658 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:45,809 INFO L93 Difference]: Finished difference Result 1749 states and 6201 transitions.
[2022-02-09 02:20:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:45,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:45,814 INFO L225 Difference]: With dead ends: 1749
[2022-02-09 02:20:45,814 INFO L226 Difference]: Without dead ends: 1464
[2022-02-09 02:20:45,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:45,814 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:45,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 103 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states.
[2022-02-09 02:20:45,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 918.
[2022-02-09 02:20:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 3.7306434023991275) internal successors, (3421), 917 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3421 transitions.
[2022-02-09 02:20:45,830 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3421 transitions. Word has length 25
[2022-02-09 02:20:45,830 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:45,830 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3421 transitions.
[2022-02-09 02:20:45,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3421 transitions.
[2022-02-09 02:20:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:45,832 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:45,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:45,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686
[2022-02-09 02:20:45,832 INFO L402 AbstractCegarLoop]: === Iteration 688 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:45,832 INFO L85 PathProgramCache]: Analyzing trace with hash 244847859, now seen corresponding path program 683 times
[2022-02-09 02:20:45,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:45,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545231234]
[2022-02-09 02:20:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:45,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:45,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:45,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545231234]
[2022-02-09 02:20:45,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545231234] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:45,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:45,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:45,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482904458]
[2022-02-09 02:20:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:45,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:45,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:45,956 INFO L87 Difference]: Start difference. First operand 918 states and 3421 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:46,059 INFO L93 Difference]: Finished difference Result 1819 states and 6398 transitions.
[2022-02-09 02:20:46,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:46,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:46,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:46,063 INFO L225 Difference]: With dead ends: 1819
[2022-02-09 02:20:46,063 INFO L226 Difference]: Without dead ends: 1636
[2022-02-09 02:20:46,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:46,064 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 126 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:46,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 102 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states.
[2022-02-09 02:20:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 962.
[2022-02-09 02:20:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 3.718002081165453) internal successors, (3573), 961 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 3573 transitions.
[2022-02-09 02:20:46,080 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 3573 transitions. Word has length 25
[2022-02-09 02:20:46,080 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:46,080 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 3573 transitions.
[2022-02-09 02:20:46,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 3573 transitions.
[2022-02-09 02:20:46,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:46,081 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:46,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:46,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687
[2022-02-09 02:20:46,082 INFO L402 AbstractCegarLoop]: === Iteration 689 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:46,082 INFO L85 PathProgramCache]: Analyzing trace with hash -824671147, now seen corresponding path program 684 times
[2022-02-09 02:20:46,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:46,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320286012]
[2022-02-09 02:20:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:46,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:46,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:46,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320286012]
[2022-02-09 02:20:46,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320286012] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:46,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:46,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:46,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610016456]
[2022-02-09 02:20:46,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:46,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:46,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:46,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:46,214 INFO L87 Difference]: Start difference. First operand 962 states and 3573 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:46,309 INFO L93 Difference]: Finished difference Result 1730 states and 6116 transitions.
[2022-02-09 02:20:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:46,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:46,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:46,313 INFO L225 Difference]: With dead ends: 1730
[2022-02-09 02:20:46,313 INFO L226 Difference]: Without dead ends: 1434
[2022-02-09 02:20:46,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:46,313 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 114 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:46,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 107 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states.
[2022-02-09 02:20:46,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 888.
[2022-02-09 02:20:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 3.745208568207441) internal successors, (3322), 887 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3322 transitions.
[2022-02-09 02:20:46,327 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3322 transitions. Word has length 25
[2022-02-09 02:20:46,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:46,327 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3322 transitions.
[2022-02-09 02:20:46,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3322 transitions.
[2022-02-09 02:20:46,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:46,329 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:46,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:46,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688
[2022-02-09 02:20:46,329 INFO L402 AbstractCegarLoop]: === Iteration 690 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:46,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:46,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1767925687, now seen corresponding path program 685 times
[2022-02-09 02:20:46,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:46,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045063386]
[2022-02-09 02:20:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:46,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:46,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:46,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045063386]
[2022-02-09 02:20:46,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045063386] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:46,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:46,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:46,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482618723]
[2022-02-09 02:20:46,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:46,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:46,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:46,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:46,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:46,450 INFO L87 Difference]: Start difference. First operand 888 states and 3322 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:46,552 INFO L93 Difference]: Finished difference Result 1692 states and 5933 transitions.
[2022-02-09 02:20:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:46,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:46,556 INFO L225 Difference]: With dead ends: 1692
[2022-02-09 02:20:46,556 INFO L226 Difference]: Without dead ends: 1503
[2022-02-09 02:20:46,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:46,556 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 118 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:46,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 97 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states.
[2022-02-09 02:20:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 888.
[2022-02-09 02:20:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 3.7181510710259302) internal successors, (3298), 887 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3298 transitions.
[2022-02-09 02:20:46,572 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3298 transitions. Word has length 25
[2022-02-09 02:20:46,572 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:46,572 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3298 transitions.
[2022-02-09 02:20:46,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3298 transitions.
[2022-02-09 02:20:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:46,573 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:46,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:46,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689
[2022-02-09 02:20:46,574 INFO L402 AbstractCegarLoop]: === Iteration 691 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash 842275669, now seen corresponding path program 686 times
[2022-02-09 02:20:46,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:46,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027954440]
[2022-02-09 02:20:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:46,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:46,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:46,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027954440]
[2022-02-09 02:20:46,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027954440] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:46,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:46,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:46,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615144631]
[2022-02-09 02:20:46,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:46,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:46,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:46,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:46,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:46,701 INFO L87 Difference]: Start difference. First operand 888 states and 3298 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:46,813 INFO L93 Difference]: Finished difference Result 1678 states and 5864 transitions.
[2022-02-09 02:20:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:46,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:46,816 INFO L225 Difference]: With dead ends: 1678
[2022-02-09 02:20:46,817 INFO L226 Difference]: Without dead ends: 1479
[2022-02-09 02:20:46,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:46,817 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 104 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:46,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 115 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states.
[2022-02-09 02:20:46,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 864.
[2022-02-09 02:20:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 3.719582850521437) internal successors, (3210), 863 states have internal predecessors, (3210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 3210 transitions.
[2022-02-09 02:20:46,831 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 3210 transitions. Word has length 25
[2022-02-09 02:20:46,831 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:46,831 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 3210 transitions.
[2022-02-09 02:20:46,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 3210 transitions.
[2022-02-09 02:20:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:46,832 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:46,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:46,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690
[2022-02-09 02:20:46,833 INFO L402 AbstractCegarLoop]: === Iteration 692 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash -195429227, now seen corresponding path program 687 times
[2022-02-09 02:20:46,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:46,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310181708]
[2022-02-09 02:20:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:46,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:46,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:46,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310181708]
[2022-02-09 02:20:46,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310181708] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:46,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:46,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:46,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449278530]
[2022-02-09 02:20:46,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:46,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:46,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:46,959 INFO L87 Difference]: Start difference. First operand 864 states and 3210 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:47,065 INFO L93 Difference]: Finished difference Result 1653 states and 5759 transitions.
[2022-02-09 02:20:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:47,068 INFO L225 Difference]: With dead ends: 1653
[2022-02-09 02:20:47,068 INFO L226 Difference]: Without dead ends: 1464
[2022-02-09 02:20:47,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:47,069 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:47,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states.
[2022-02-09 02:20:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 802.
[2022-02-09 02:20:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 3.6928838951310863) internal successors, (2958), 801 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2958 transitions.
[2022-02-09 02:20:47,083 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2958 transitions. Word has length 25
[2022-02-09 02:20:47,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:47,083 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 2958 transitions.
[2022-02-09 02:20:47,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2958 transitions.
[2022-02-09 02:20:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:47,084 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:47,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:47,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691
[2022-02-09 02:20:47,084 INFO L402 AbstractCegarLoop]: === Iteration 693 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:47,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1002221781, now seen corresponding path program 688 times
[2022-02-09 02:20:47,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:47,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73822713]
[2022-02-09 02:20:47,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:47,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:47,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:47,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73822713]
[2022-02-09 02:20:47,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73822713] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:47,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:47,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:47,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748812722]
[2022-02-09 02:20:47,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:47,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:47,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:47,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:47,211 INFO L87 Difference]: Start difference. First operand 802 states and 2958 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:47,312 INFO L93 Difference]: Finished difference Result 1558 states and 5457 transitions.
[2022-02-09 02:20:47,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:47,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:47,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:47,315 INFO L225 Difference]: With dead ends: 1558
[2022-02-09 02:20:47,315 INFO L226 Difference]: Without dead ends: 1273
[2022-02-09 02:20:47,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:47,316 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 100 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:47,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 110 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:47,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states.
[2022-02-09 02:20:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 739.
[2022-02-09 02:20:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 3.68970189701897) internal successors, (2723), 738 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 2723 transitions.
[2022-02-09 02:20:47,327 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 2723 transitions. Word has length 25
[2022-02-09 02:20:47,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:47,327 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 2723 transitions.
[2022-02-09 02:20:47,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 2723 transitions.
[2022-02-09 02:20:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:47,329 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:47,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:47,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692
[2022-02-09 02:20:47,329 INFO L402 AbstractCegarLoop]: === Iteration 694 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:47,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:47,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1622361331, now seen corresponding path program 689 times
[2022-02-09 02:20:47,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:47,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871462356]
[2022-02-09 02:20:47,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:47,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:47,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:47,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871462356]
[2022-02-09 02:20:47,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871462356] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:47,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:47,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:47,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251615051]
[2022-02-09 02:20:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:47,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:47,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:47,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:47,454 INFO L87 Difference]: Start difference. First operand 739 states and 2723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:47,557 INFO L93 Difference]: Finished difference Result 1488 states and 5227 transitions.
[2022-02-09 02:20:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:47,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:47,560 INFO L225 Difference]: With dead ends: 1488
[2022-02-09 02:20:47,560 INFO L226 Difference]: Without dead ends: 1313
[2022-02-09 02:20:47,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:47,560 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 112 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:47,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 104 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states.
[2022-02-09 02:20:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 779.
[2022-02-09 02:20:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 3.6799485861182517) internal successors, (2863), 778 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2863 transitions.
[2022-02-09 02:20:47,585 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 2863 transitions. Word has length 25
[2022-02-09 02:20:47,585 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:47,585 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 2863 transitions.
[2022-02-09 02:20:47,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 2863 transitions.
[2022-02-09 02:20:47,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:47,586 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:47,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:47,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693
[2022-02-09 02:20:47,586 INFO L402 AbstractCegarLoop]: === Iteration 695 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:47,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:47,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1840712917, now seen corresponding path program 690 times
[2022-02-09 02:20:47,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:47,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762187984]
[2022-02-09 02:20:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:47,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:47,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:47,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762187984]
[2022-02-09 02:20:47,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762187984] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:47,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:47,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:47,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841530779]
[2022-02-09 02:20:47,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:47,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:47,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:47,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:47,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:47,705 INFO L87 Difference]: Start difference. First operand 779 states and 2863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:47,801 INFO L93 Difference]: Finished difference Result 1312 states and 4642 transitions.
[2022-02-09 02:20:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:47,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:47,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:47,804 INFO L225 Difference]: With dead ends: 1312
[2022-02-09 02:20:47,804 INFO L226 Difference]: Without dead ends: 1022
[2022-02-09 02:20:47,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:47,804 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 98 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:47,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 110 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states.
[2022-02-09 02:20:47,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 711.
[2022-02-09 02:20:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 3.702816901408451) internal successors, (2629), 710 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 2629 transitions.
[2022-02-09 02:20:47,815 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 2629 transitions. Word has length 25
[2022-02-09 02:20:47,815 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:47,816 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 2629 transitions.
[2022-02-09 02:20:47,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 2629 transitions.
[2022-02-09 02:20:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:47,817 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:47,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:47,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694
[2022-02-09 02:20:47,817 INFO L402 AbstractCegarLoop]: === Iteration 696 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:47,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:47,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1773007629, now seen corresponding path program 691 times
[2022-02-09 02:20:47,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:47,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669136285]
[2022-02-09 02:20:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:47,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:47,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:47,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669136285]
[2022-02-09 02:20:47,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669136285] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:47,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:47,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:47,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333302832]
[2022-02-09 02:20:47,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:47,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:47,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:47,935 INFO L87 Difference]: Start difference. First operand 711 states and 2629 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:48,033 INFO L93 Difference]: Finished difference Result 1477 states and 5238 transitions.
[2022-02-09 02:20:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:48,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:48,036 INFO L225 Difference]: With dead ends: 1477
[2022-02-09 02:20:48,036 INFO L226 Difference]: Without dead ends: 1294
[2022-02-09 02:20:48,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:48,036 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:48,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 99 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states.
[2022-02-09 02:20:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 755.
[2022-02-09 02:20:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 754 states have (on average 3.7095490716180373) internal successors, (2797), 754 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 2797 transitions.
[2022-02-09 02:20:48,049 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 2797 transitions. Word has length 25
[2022-02-09 02:20:48,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:48,049 INFO L470 AbstractCegarLoop]: Abstraction has 755 states and 2797 transitions.
[2022-02-09 02:20:48,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 2797 transitions.
[2022-02-09 02:20:48,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:48,050 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:48,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:48,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695
[2022-02-09 02:20:48,050 INFO L402 AbstractCegarLoop]: === Iteration 697 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:48,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:48,050 INFO L85 PathProgramCache]: Analyzing trace with hash -691945003, now seen corresponding path program 692 times
[2022-02-09 02:20:48,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:48,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698428864]
[2022-02-09 02:20:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:48,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:48,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:48,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698428864]
[2022-02-09 02:20:48,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698428864] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:48,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:48,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:48,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807971915]
[2022-02-09 02:20:48,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:48,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:48,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:48,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:48,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:48,170 INFO L87 Difference]: Start difference. First operand 755 states and 2797 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:48,278 INFO L93 Difference]: Finished difference Result 1469 states and 5186 transitions.
[2022-02-09 02:20:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:48,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:48,282 INFO L225 Difference]: With dead ends: 1469
[2022-02-09 02:20:48,282 INFO L226 Difference]: Without dead ends: 1270
[2022-02-09 02:20:48,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:48,282 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:48,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 109 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states.
[2022-02-09 02:20:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 731.
[2022-02-09 02:20:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 3.710958904109589) internal successors, (2709), 730 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2709 transitions.
[2022-02-09 02:20:48,296 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2709 transitions. Word has length 25
[2022-02-09 02:20:48,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:48,297 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2709 transitions.
[2022-02-09 02:20:48,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2709 transitions.
[2022-02-09 02:20:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:48,298 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:48,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696
[2022-02-09 02:20:48,298 INFO L402 AbstractCegarLoop]: === Iteration 698 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1904436309, now seen corresponding path program 693 times
[2022-02-09 02:20:48,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:48,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798202436]
[2022-02-09 02:20:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:48,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:48,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:48,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:48,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798202436]
[2022-02-09 02:20:48,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798202436] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:48,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:48,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:48,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014522822]
[2022-02-09 02:20:48,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:48,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:48,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:48,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:48,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:48,419 INFO L87 Difference]: Start difference. First operand 731 states and 2709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:48,517 INFO L93 Difference]: Finished difference Result 1397 states and 4922 transitions.
[2022-02-09 02:20:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:48,521 INFO L225 Difference]: With dead ends: 1397
[2022-02-09 02:20:48,521 INFO L226 Difference]: Without dead ends: 1214
[2022-02-09 02:20:48,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:48,521 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 96 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:48,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 110 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:48,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states.
[2022-02-09 02:20:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 775.
[2022-02-09 02:20:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 3.6963824289405687) internal successors, (2861), 774 states have internal predecessors, (2861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2861 transitions.
[2022-02-09 02:20:48,534 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2861 transitions. Word has length 25
[2022-02-09 02:20:48,534 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:48,534 INFO L470 AbstractCegarLoop]: Abstraction has 775 states and 2861 transitions.
[2022-02-09 02:20:48,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2861 transitions.
[2022-02-09 02:20:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:48,535 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:48,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:48,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697
[2022-02-09 02:20:48,536 INFO L402 AbstractCegarLoop]: === Iteration 699 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1620759467, now seen corresponding path program 694 times
[2022-02-09 02:20:48,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:48,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66753866]
[2022-02-09 02:20:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:48,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:48,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:48,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66753866]
[2022-02-09 02:20:48,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66753866] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:48,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:48,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:48,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734909459]
[2022-02-09 02:20:48,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:48,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:48,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:48,658 INFO L87 Difference]: Start difference. First operand 775 states and 2861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:48,755 INFO L93 Difference]: Finished difference Result 1308 states and 4640 transitions.
[2022-02-09 02:20:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:48,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:48,758 INFO L225 Difference]: With dead ends: 1308
[2022-02-09 02:20:48,759 INFO L226 Difference]: Without dead ends: 1042
[2022-02-09 02:20:48,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:48,759 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 90 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:48,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 116 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states.
[2022-02-09 02:20:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 731.
[2022-02-09 02:20:48,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 3.6835616438356165) internal successors, (2689), 730 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2689 transitions.
[2022-02-09 02:20:48,771 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2689 transitions. Word has length 25
[2022-02-09 02:20:48,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:48,771 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2689 transitions.
[2022-02-09 02:20:48,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2689 transitions.
[2022-02-09 02:20:48,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:48,772 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:48,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:48,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698
[2022-02-09 02:20:48,772 INFO L402 AbstractCegarLoop]: === Iteration 700 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:48,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:48,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2002526025, now seen corresponding path program 695 times
[2022-02-09 02:20:48,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:48,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299840474]
[2022-02-09 02:20:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:48,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:48,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:48,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299840474]
[2022-02-09 02:20:48,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299840474] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:48,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:48,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:48,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168039520]
[2022-02-09 02:20:48,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:48,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:48,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:48,894 INFO L87 Difference]: Start difference. First operand 731 states and 2689 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:48,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:48,986 INFO L93 Difference]: Finished difference Result 1169 states and 4133 transitions.
[2022-02-09 02:20:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:48,989 INFO L225 Difference]: With dead ends: 1169
[2022-02-09 02:20:48,989 INFO L226 Difference]: Without dead ends: 994
[2022-02-09 02:20:48,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:48,989 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:48,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states.
[2022-02-09 02:20:48,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 771.
[2022-02-09 02:20:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 3.674025974025974) internal successors, (2829), 770 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 2829 transitions.
[2022-02-09 02:20:49,000 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 2829 transitions. Word has length 25
[2022-02-09 02:20:49,000 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:49,000 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 2829 transitions.
[2022-02-09 02:20:49,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 2829 transitions.
[2022-02-09 02:20:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:49,002 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:49,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:49,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699
[2022-02-09 02:20:49,002 INFO L402 AbstractCegarLoop]: === Iteration 701 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash 471405845, now seen corresponding path program 696 times
[2022-02-09 02:20:49,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:49,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068796522]
[2022-02-09 02:20:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:49,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:49,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:49,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:49,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068796522]
[2022-02-09 02:20:49,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068796522] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:49,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:49,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:49,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341641032]
[2022-02-09 02:20:49,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:49,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:49,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:49,147 INFO L87 Difference]: Start difference. First operand 771 states and 2829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:49,247 INFO L93 Difference]: Finished difference Result 993 states and 3548 transitions.
[2022-02-09 02:20:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:49,249 INFO L225 Difference]: With dead ends: 993
[2022-02-09 02:20:49,249 INFO L226 Difference]: Without dead ends: 697
[2022-02-09 02:20:49,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:49,250 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:49,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 121 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states.
[2022-02-09 02:20:49,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697.
[2022-02-09 02:20:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.7198275862068964) internal successors, (2589), 696 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2589 transitions.
[2022-02-09 02:20:49,259 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2589 transitions. Word has length 25
[2022-02-09 02:20:49,259 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:49,259 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2589 transitions.
[2022-02-09 02:20:49,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2589 transitions.
[2022-02-09 02:20:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:49,260 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:49,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:49,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700
[2022-02-09 02:20:49,260 INFO L402 AbstractCegarLoop]: === Iteration 702 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:49,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1003874991, now seen corresponding path program 697 times
[2022-02-09 02:20:49,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:49,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173712803]
[2022-02-09 02:20:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:49,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:49,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:49,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173712803]
[2022-02-09 02:20:49,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173712803] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:49,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:49,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:49,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105287591]
[2022-02-09 02:20:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:49,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:49,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:49,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:49,382 INFO L87 Difference]: Start difference. First operand 697 states and 2589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:49,481 INFO L93 Difference]: Finished difference Result 1284 states and 4495 transitions.
[2022-02-09 02:20:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:49,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:49,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:49,484 INFO L225 Difference]: With dead ends: 1284
[2022-02-09 02:20:49,484 INFO L226 Difference]: Without dead ends: 1097
[2022-02-09 02:20:49,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:49,484 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:49,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 105 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:49,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states.
[2022-02-09 02:20:49,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 725.
[2022-02-09 02:20:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 724 states have (on average 3.697513812154696) internal successors, (2677), 724 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2677 transitions.
[2022-02-09 02:20:49,495 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2677 transitions. Word has length 25
[2022-02-09 02:20:49,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:49,495 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2677 transitions.
[2022-02-09 02:20:49,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2677 transitions.
[2022-02-09 02:20:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:49,496 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:49,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:49,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701
[2022-02-09 02:20:49,496 INFO L402 AbstractCegarLoop]: === Iteration 703 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash 77187635, now seen corresponding path program 698 times
[2022-02-09 02:20:49,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:49,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472037071]
[2022-02-09 02:20:49,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:49,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:49,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:49,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472037071]
[2022-02-09 02:20:49,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472037071] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:49,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:49,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:49,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508399912]
[2022-02-09 02:20:49,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:49,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:49,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:49,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:49,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:49,618 INFO L87 Difference]: Start difference. First operand 725 states and 2677 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:49,712 INFO L93 Difference]: Finished difference Result 1280 states and 4455 transitions.
[2022-02-09 02:20:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:49,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:49,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:49,715 INFO L225 Difference]: With dead ends: 1280
[2022-02-09 02:20:49,715 INFO L226 Difference]: Without dead ends: 1069
[2022-02-09 02:20:49,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:49,715 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 101 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:49,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 91 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states.
[2022-02-09 02:20:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 697.
[2022-02-09 02:20:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.7025862068965516) internal successors, (2577), 696 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2577 transitions.
[2022-02-09 02:20:49,726 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2577 transitions. Word has length 25
[2022-02-09 02:20:49,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:49,726 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2577 transitions.
[2022-02-09 02:20:49,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2577 transitions.
[2022-02-09 02:20:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:49,727 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:49,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:49,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702
[2022-02-09 02:20:49,727 INFO L402 AbstractCegarLoop]: === Iteration 704 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:49,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1484777037, now seen corresponding path program 699 times
[2022-02-09 02:20:49,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:49,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213891074]
[2022-02-09 02:20:49,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:49,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:49,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:49,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213891074]
[2022-02-09 02:20:49,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213891074] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:49,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:49,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:49,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033425344]
[2022-02-09 02:20:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:49,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:49,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:49,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:49,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:49,848 INFO L87 Difference]: Start difference. First operand 697 states and 2577 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:49,947 INFO L93 Difference]: Finished difference Result 1272 states and 4439 transitions.
[2022-02-09 02:20:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:49,950 INFO L225 Difference]: With dead ends: 1272
[2022-02-09 02:20:49,950 INFO L226 Difference]: Without dead ends: 1085
[2022-02-09 02:20:49,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:49,950 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 98 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:49,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 85 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states.
[2022-02-09 02:20:49,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 721.
[2022-02-09 02:20:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.6847222222222222) internal successors, (2653), 720 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2653 transitions.
[2022-02-09 02:20:49,960 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2653 transitions. Word has length 25
[2022-02-09 02:20:49,960 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:49,961 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2653 transitions.
[2022-02-09 02:20:49,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2653 transitions.
[2022-02-09 02:20:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:49,962 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:49,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:49,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703
[2022-02-09 02:20:49,962 INFO L402 AbstractCegarLoop]: === Iteration 705 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1121943987, now seen corresponding path program 700 times
[2022-02-09 02:20:49,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:49,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662124466]
[2022-02-09 02:20:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:49,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:50,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:50,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662124466]
[2022-02-09 02:20:50,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662124466] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:50,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:50,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:50,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454951250]
[2022-02-09 02:20:50,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:50,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:50,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:50,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:50,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:50,086 INFO L87 Difference]: Start difference. First operand 721 states and 2653 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:50,182 INFO L93 Difference]: Finished difference Result 1260 states and 4375 transitions.
[2022-02-09 02:20:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:50,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:50,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:50,184 INFO L225 Difference]: With dead ends: 1260
[2022-02-09 02:20:50,184 INFO L226 Difference]: Without dead ends: 1061
[2022-02-09 02:20:50,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:50,184 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 102 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:50,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states.
[2022-02-09 02:20:50,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 697.
[2022-02-09 02:20:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.685344827586207) internal successors, (2565), 696 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2565 transitions.
[2022-02-09 02:20:50,195 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2565 transitions. Word has length 25
[2022-02-09 02:20:50,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:50,195 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2565 transitions.
[2022-02-09 02:20:50,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2565 transitions.
[2022-02-09 02:20:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:50,197 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:50,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:50,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704
[2022-02-09 02:20:50,197 INFO L402 AbstractCegarLoop]: === Iteration 706 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:50,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:50,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1096772075, now seen corresponding path program 701 times
[2022-02-09 02:20:50,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:50,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727280030]
[2022-02-09 02:20:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:50,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:50,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:50,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727280030]
[2022-02-09 02:20:50,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727280030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:50,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:50,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:50,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161812442]
[2022-02-09 02:20:50,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:50,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:50,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:50,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:50,320 INFO L87 Difference]: Start difference. First operand 697 states and 2565 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:50,415 INFO L93 Difference]: Finished difference Result 1264 states and 4403 transitions.
[2022-02-09 02:20:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:50,417 INFO L225 Difference]: With dead ends: 1264
[2022-02-09 02:20:50,417 INFO L226 Difference]: Without dead ends: 1081
[2022-02-09 02:20:50,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:50,418 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 102 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:50,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states.
[2022-02-09 02:20:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 721.
[2022-02-09 02:20:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.6680555555555556) internal successors, (2641), 720 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2641 transitions.
[2022-02-09 02:20:50,429 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2641 transitions. Word has length 25
[2022-02-09 02:20:50,429 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:50,429 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2641 transitions.
[2022-02-09 02:20:50,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2641 transitions.
[2022-02-09 02:20:50,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:50,430 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:50,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:50,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705
[2022-02-09 02:20:50,430 INFO L402 AbstractCegarLoop]: === Iteration 707 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:50,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:50,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1943569037, now seen corresponding path program 702 times
[2022-02-09 02:20:50,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:50,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126804179]
[2022-02-09 02:20:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:50,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:50,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:50,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126804179]
[2022-02-09 02:20:50,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126804179] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:50,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:50,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:50,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550246353]
[2022-02-09 02:20:50,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:50,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:50,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:50,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:50,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:50,555 INFO L87 Difference]: Start difference. First operand 721 states and 2641 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:50,661 INFO L93 Difference]: Finished difference Result 1256 states and 4351 transitions.
[2022-02-09 02:20:50,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:50,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:50,664 INFO L225 Difference]: With dead ends: 1256
[2022-02-09 02:20:50,664 INFO L226 Difference]: Without dead ends: 1045
[2022-02-09 02:20:50,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:50,664 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 90 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:50,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 84 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states.
[2022-02-09 02:20:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 685.
[2022-02-09 02:20:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 3.6944444444444446) internal successors, (2527), 684 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2527 transitions.
[2022-02-09 02:20:50,675 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2527 transitions. Word has length 25
[2022-02-09 02:20:50,675 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:50,675 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2527 transitions.
[2022-02-09 02:20:50,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2527 transitions.
[2022-02-09 02:20:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:50,676 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:50,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:50,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706
[2022-02-09 02:20:50,676 INFO L402 AbstractCegarLoop]: === Iteration 708 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1738335181, now seen corresponding path program 703 times
[2022-02-09 02:20:50,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:50,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282720611]
[2022-02-09 02:20:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:50,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:50,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:50,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282720611]
[2022-02-09 02:20:50,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282720611] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:50,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:50,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:50,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333579747]
[2022-02-09 02:20:50,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:50,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:50,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:50,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:50,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:50,796 INFO L87 Difference]: Start difference. First operand 685 states and 2527 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:50,889 INFO L93 Difference]: Finished difference Result 1244 states and 4317 transitions.
[2022-02-09 02:20:50,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:50,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:50,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:50,892 INFO L225 Difference]: With dead ends: 1244
[2022-02-09 02:20:50,892 INFO L226 Difference]: Without dead ends: 1057
[2022-02-09 02:20:50,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:50,892 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:50,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 90 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:50,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states.
[2022-02-09 02:20:50,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 685.
[2022-02-09 02:20:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 3.6535087719298245) internal successors, (2499), 684 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2499 transitions.
[2022-02-09 02:20:50,903 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2499 transitions. Word has length 25
[2022-02-09 02:20:50,903 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:50,903 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2499 transitions.
[2022-02-09 02:20:50,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2499 transitions.
[2022-02-09 02:20:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:50,904 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:50,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:50,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707
[2022-02-09 02:20:50,904 INFO L402 AbstractCegarLoop]: === Iteration 709 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash -657272555, now seen corresponding path program 704 times
[2022-02-09 02:20:50,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:50,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180781860]
[2022-02-09 02:20:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:50,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:51,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:51,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180781860]
[2022-02-09 02:20:51,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180781860] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:51,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:51,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:51,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920392044]
[2022-02-09 02:20:51,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:51,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:51,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:51,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:51,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:51,023 INFO L87 Difference]: Start difference. First operand 685 states and 2499 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:51,114 INFO L93 Difference]: Finished difference Result 1240 states and 4277 transitions.
[2022-02-09 02:20:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:51,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:51,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:51,116 INFO L225 Difference]: With dead ends: 1240
[2022-02-09 02:20:51,117 INFO L226 Difference]: Without dead ends: 1029
[2022-02-09 02:20:51,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:51,117 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 90 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:51,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 87 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states.
[2022-02-09 02:20:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 657.
[2022-02-09 02:20:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 3.653963414634146) internal successors, (2397), 656 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2397 transitions.
[2022-02-09 02:20:51,127 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2397 transitions. Word has length 25
[2022-02-09 02:20:51,127 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:51,127 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2397 transitions.
[2022-02-09 02:20:51,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2397 transitions.
[2022-02-09 02:20:51,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:51,128 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:51,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:51,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708
[2022-02-09 02:20:51,128 INFO L402 AbstractCegarLoop]: === Iteration 710 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash -722279373, now seen corresponding path program 705 times
[2022-02-09 02:20:51,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:51,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319689561]
[2022-02-09 02:20:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:51,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:51,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:51,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319689561]
[2022-02-09 02:20:51,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319689561] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:51,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:51,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:51,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105750946]
[2022-02-09 02:20:51,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:51,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:51,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:51,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:51,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:51,247 INFO L87 Difference]: Start difference. First operand 657 states and 2397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:51,339 INFO L93 Difference]: Finished difference Result 1241 states and 4289 transitions.
[2022-02-09 02:20:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:51,341 INFO L225 Difference]: With dead ends: 1241
[2022-02-09 02:20:51,341 INFO L226 Difference]: Without dead ends: 1054
[2022-02-09 02:20:51,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:51,341 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 97 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:51,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 88 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states.
[2022-02-09 02:20:51,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 703.
[2022-02-09 02:20:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 702 states have (on average 3.6381766381766383) internal successors, (2554), 702 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 2554 transitions.
[2022-02-09 02:20:51,351 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 2554 transitions. Word has length 25
[2022-02-09 02:20:51,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:51,352 INFO L470 AbstractCegarLoop]: Abstraction has 703 states and 2554 transitions.
[2022-02-09 02:20:51,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 2554 transitions.
[2022-02-09 02:20:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:51,353 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:51,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:51,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709
[2022-02-09 02:20:51,353 INFO L402 AbstractCegarLoop]: === Iteration 711 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:51,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1785306163, now seen corresponding path program 706 times
[2022-02-09 02:20:51,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:51,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965834866]
[2022-02-09 02:20:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:51,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:51,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:51,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965834866]
[2022-02-09 02:20:51,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965834866] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:51,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:51,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:51,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653246086]
[2022-02-09 02:20:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:51,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:51,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:51,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:51,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:51,474 INFO L87 Difference]: Start difference. First operand 703 states and 2554 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:51,562 INFO L93 Difference]: Finished difference Result 1148 states and 3993 transitions.
[2022-02-09 02:20:51,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:51,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:51,564 INFO L225 Difference]: With dead ends: 1148
[2022-02-09 02:20:51,564 INFO L226 Difference]: Without dead ends: 880
[2022-02-09 02:20:51,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:51,564 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:51,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 91 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:51,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states.
[2022-02-09 02:20:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 657.
[2022-02-09 02:20:51,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 3.620426829268293) internal successors, (2375), 656 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2375 transitions.
[2022-02-09 02:20:51,574 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2375 transitions. Word has length 25
[2022-02-09 02:20:51,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:51,574 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2375 transitions.
[2022-02-09 02:20:51,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2375 transitions.
[2022-02-09 02:20:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:51,575 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:51,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:51,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710
[2022-02-09 02:20:51,575 INFO L402 AbstractCegarLoop]: === Iteration 712 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:51,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash -334274411, now seen corresponding path program 707 times
[2022-02-09 02:20:51,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:51,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961334363]
[2022-02-09 02:20:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:51,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:51,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:51,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961334363]
[2022-02-09 02:20:51,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961334363] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:51,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:51,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:51,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787059872]
[2022-02-09 02:20:51,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:51,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:51,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:51,697 INFO L87 Difference]: Start difference. First operand 657 states and 2375 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:51,803 INFO L93 Difference]: Finished difference Result 1235 states and 4248 transitions.
[2022-02-09 02:20:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:51,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:51,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:51,806 INFO L225 Difference]: With dead ends: 1235
[2022-02-09 02:20:51,806 INFO L226 Difference]: Without dead ends: 1052
[2022-02-09 02:20:51,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:51,806 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 96 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:51,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 82 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:51,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2022-02-09 02:20:51,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 701.
[2022-02-09 02:20:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 700 states have (on average 3.61) internal successors, (2527), 700 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 2527 transitions.
[2022-02-09 02:20:51,818 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 2527 transitions. Word has length 25
[2022-02-09 02:20:51,818 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:51,818 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 2527 transitions.
[2022-02-09 02:20:51,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 2527 transitions.
[2022-02-09 02:20:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:51,819 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:51,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:51,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711
[2022-02-09 02:20:51,819 INFO L402 AbstractCegarLoop]: === Iteration 713 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:51,819 INFO L85 PathProgramCache]: Analyzing trace with hash 870374771, now seen corresponding path program 708 times
[2022-02-09 02:20:51,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:51,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905111391]
[2022-02-09 02:20:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:51,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:51,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:51,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905111391]
[2022-02-09 02:20:51,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905111391] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:51,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:51,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:51,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125925361]
[2022-02-09 02:20:51,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:51,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:51,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:51,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:51,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:51,949 INFO L87 Difference]: Start difference. First operand 701 states and 2527 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:52,033 INFO L93 Difference]: Finished difference Result 1146 states and 3966 transitions.
[2022-02-09 02:20:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:52,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:52,036 INFO L225 Difference]: With dead ends: 1146
[2022-02-09 02:20:52,036 INFO L226 Difference]: Without dead ends: 858
[2022-02-09 02:20:52,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:52,036 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 80 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:52,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 89 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states.
[2022-02-09 02:20:52,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 635.
[2022-02-09 02:20:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 3.6277602523659307) internal successors, (2300), 634 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2300 transitions.
[2022-02-09 02:20:52,045 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2300 transitions. Word has length 25
[2022-02-09 02:20:52,045 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:52,045 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2300 transitions.
[2022-02-09 02:20:52,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2300 transitions.
[2022-02-09 02:20:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:52,046 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:52,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:52,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712
[2022-02-09 02:20:52,047 INFO L402 AbstractCegarLoop]: === Iteration 714 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1767245845, now seen corresponding path program 709 times
[2022-02-09 02:20:52,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:52,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67262909]
[2022-02-09 02:20:52,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:52,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:52,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:52,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67262909]
[2022-02-09 02:20:52,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67262909] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:52,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:52,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:52,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151823368]
[2022-02-09 02:20:52,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:52,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:52,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:52,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:52,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:52,167 INFO L87 Difference]: Start difference. First operand 635 states and 2300 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:52,257 INFO L93 Difference]: Finished difference Result 1126 states and 3846 transitions.
[2022-02-09 02:20:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:52,260 INFO L225 Difference]: With dead ends: 1126
[2022-02-09 02:20:52,260 INFO L226 Difference]: Without dead ends: 939
[2022-02-09 02:20:52,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:52,260 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 86 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:52,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 80 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:52,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states.
[2022-02-09 02:20:52,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 635.
[2022-02-09 02:20:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 3.589905362776025) internal successors, (2276), 634 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2276 transitions.
[2022-02-09 02:20:52,270 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2276 transitions. Word has length 25
[2022-02-09 02:20:52,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:52,270 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2276 transitions.
[2022-02-09 02:20:52,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,270 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2276 transitions.
[2022-02-09 02:20:52,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:52,271 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:52,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:52,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713
[2022-02-09 02:20:52,271 INFO L402 AbstractCegarLoop]: === Iteration 715 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 78999573, now seen corresponding path program 710 times
[2022-02-09 02:20:52,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:52,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329506349]
[2022-02-09 02:20:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:52,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:52,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:52,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329506349]
[2022-02-09 02:20:52,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329506349] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:52,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:52,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:52,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555916909]
[2022-02-09 02:20:52,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:52,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:52,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:52,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:52,391 INFO L87 Difference]: Start difference. First operand 635 states and 2276 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:52,478 INFO L93 Difference]: Finished difference Result 1114 states and 3782 transitions.
[2022-02-09 02:20:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:52,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:52,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:52,481 INFO L225 Difference]: With dead ends: 1114
[2022-02-09 02:20:52,481 INFO L226 Difference]: Without dead ends: 915
[2022-02-09 02:20:52,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:52,481 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 103 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:52,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 78 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states.
[2022-02-09 02:20:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 611.
[2022-02-09 02:20:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 3.586885245901639) internal successors, (2188), 610 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 2188 transitions.
[2022-02-09 02:20:52,490 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 2188 transitions. Word has length 25
[2022-02-09 02:20:52,490 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:52,490 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 2188 transitions.
[2022-02-09 02:20:52,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 2188 transitions.
[2022-02-09 02:20:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:52,491 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:52,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:52,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714
[2022-02-09 02:20:52,492 INFO L402 AbstractCegarLoop]: === Iteration 716 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:52,492 INFO L85 PathProgramCache]: Analyzing trace with hash -196109069, now seen corresponding path program 711 times
[2022-02-09 02:20:52,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:52,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190953026]
[2022-02-09 02:20:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:52,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:52,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:52,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190953026]
[2022-02-09 02:20:52,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190953026] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:52,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:52,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:52,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094086615]
[2022-02-09 02:20:52,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:52,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:52,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:52,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:52,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:52,620 INFO L87 Difference]: Start difference. First operand 611 states and 2188 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:52,709 INFO L93 Difference]: Finished difference Result 1089 states and 3677 transitions.
[2022-02-09 02:20:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:52,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:52,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:52,711 INFO L225 Difference]: With dead ends: 1089
[2022-02-09 02:20:52,711 INFO L226 Difference]: Without dead ends: 902
[2022-02-09 02:20:52,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:52,711 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 113 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:52,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 80 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states.
[2022-02-09 02:20:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 551.
[2022-02-09 02:20:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 3.5309090909090908) internal successors, (1942), 550 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 1942 transitions.
[2022-02-09 02:20:52,720 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 1942 transitions. Word has length 25
[2022-02-09 02:20:52,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:52,720 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 1942 transitions.
[2022-02-09 02:20:52,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 1942 transitions.
[2022-02-09 02:20:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:52,721 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:52,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:52,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715
[2022-02-09 02:20:52,721 INFO L402 AbstractCegarLoop]: === Iteration 717 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:52,722 INFO L85 PathProgramCache]: Analyzing trace with hash -800059371, now seen corresponding path program 712 times
[2022-02-09 02:20:52,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:52,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404662985]
[2022-02-09 02:20:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:52,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:52,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:52,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404662985]
[2022-02-09 02:20:52,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404662985] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:52,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:52,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:52,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016941683]
[2022-02-09 02:20:52,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:52,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:52,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:52,845 INFO L87 Difference]: Start difference. First operand 551 states and 1942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:52,925 INFO L93 Difference]: Finished difference Result 996 states and 3381 transitions.
[2022-02-09 02:20:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:52,927 INFO L225 Difference]: With dead ends: 996
[2022-02-09 02:20:52,927 INFO L226 Difference]: Without dead ends: 728
[2022-02-09 02:20:52,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:52,927 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 117 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:52,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 90 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states.
[2022-02-09 02:20:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 505.
[2022-02-09 02:20:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 3.501984126984127) internal successors, (1765), 504 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 1765 transitions.
[2022-02-09 02:20:52,935 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 1765 transitions. Word has length 25
[2022-02-09 02:20:52,935 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:52,935 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 1765 transitions.
[2022-02-09 02:20:52,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 1765 transitions.
[2022-02-09 02:20:52,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:52,936 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:52,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:52,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716
[2022-02-09 02:20:52,936 INFO L402 AbstractCegarLoop]: === Iteration 718 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:52,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash 392046613, now seen corresponding path program 713 times
[2022-02-09 02:20:52,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:52,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80929837]
[2022-02-09 02:20:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:52,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:53,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:53,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80929837]
[2022-02-09 02:20:53,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80929837] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:53,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:53,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:53,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698113085]
[2022-02-09 02:20:53,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:53,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:53,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:53,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:53,061 INFO L87 Difference]: Start difference. First operand 505 states and 1765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:53,154 INFO L93 Difference]: Finished difference Result 943 states and 3209 transitions.
[2022-02-09 02:20:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:53,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:53,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:53,156 INFO L225 Difference]: With dead ends: 943
[2022-02-09 02:20:53,156 INFO L226 Difference]: Without dead ends: 768
[2022-02-09 02:20:53,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:53,156 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 84 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:53,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states.
[2022-02-09 02:20:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 545.
[2022-02-09 02:20:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 3.5018382352941178) internal successors, (1905), 544 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 1905 transitions.
[2022-02-09 02:20:53,164 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 1905 transitions. Word has length 25
[2022-02-09 02:20:53,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:53,164 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 1905 transitions.
[2022-02-09 02:20:53,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 1905 transitions.
[2022-02-09 02:20:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:53,165 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:53,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:53,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717
[2022-02-09 02:20:53,165 INFO L402 AbstractCegarLoop]: === Iteration 719 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:53,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:53,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1428988813, now seen corresponding path program 714 times
[2022-02-09 02:20:53,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:53,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28009931]
[2022-02-09 02:20:53,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:53,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:53,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:53,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:53,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28009931]
[2022-02-09 02:20:53,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28009931] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:53,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:53,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:53,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717070904]
[2022-02-09 02:20:53,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:53,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:53,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:53,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:53,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:53,291 INFO L87 Difference]: Start difference. First operand 545 states and 1905 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:53,363 INFO L93 Difference]: Finished difference Result 767 states and 2624 transitions.
[2022-02-09 02:20:53,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:53,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:53,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:53,365 INFO L225 Difference]: With dead ends: 767
[2022-02-09 02:20:53,365 INFO L226 Difference]: Without dead ends: 485
[2022-02-09 02:20:53,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:53,365 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 76 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:53,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 82 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:53,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states.
[2022-02-09 02:20:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485.
[2022-02-09 02:20:53,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 3.5020661157024793) internal successors, (1695), 484 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1695 transitions.
[2022-02-09 02:20:53,371 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1695 transitions. Word has length 25
[2022-02-09 02:20:53,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:53,371 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1695 transitions.
[2022-02-09 02:20:53,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,371 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1695 transitions.
[2022-02-09 02:20:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:53,372 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:53,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:53,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718
[2022-02-09 02:20:53,372 INFO L402 AbstractCegarLoop]: === Iteration 720 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1846766583, now seen corresponding path program 715 times
[2022-02-09 02:20:53,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:53,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320449669]
[2022-02-09 02:20:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:53,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:53,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:53,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320449669]
[2022-02-09 02:20:53,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320449669] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:53,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:53,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:53,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342368650]
[2022-02-09 02:20:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:53,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:53,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:53,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:53,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:53,501 INFO L87 Difference]: Start difference. First operand 485 states and 1695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:53,590 INFO L93 Difference]: Finished difference Result 796 states and 2668 transitions.
[2022-02-09 02:20:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:53,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:53,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:53,591 INFO L225 Difference]: With dead ends: 796
[2022-02-09 02:20:53,591 INFO L226 Difference]: Without dead ends: 613
[2022-02-09 02:20:53,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:53,592 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:53,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 76 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states.
[2022-02-09 02:20:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 485.
[2022-02-09 02:20:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 3.4524793388429753) internal successors, (1671), 484 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1671 transitions.
[2022-02-09 02:20:53,598 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1671 transitions. Word has length 25
[2022-02-09 02:20:53,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:53,598 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1671 transitions.
[2022-02-09 02:20:53,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1671 transitions.
[2022-02-09 02:20:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:53,599 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:53,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:53,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719
[2022-02-09 02:20:53,599 INFO L402 AbstractCegarLoop]: === Iteration 721 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash 999969621, now seen corresponding path program 716 times
[2022-02-09 02:20:53,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:53,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356576800]
[2022-02-09 02:20:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:53,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:53,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:53,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:53,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356576800]
[2022-02-09 02:20:53,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356576800] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:53,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:53,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:53,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881223890]
[2022-02-09 02:20:53,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:53,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:53,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:53,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:53,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:53,734 INFO L87 Difference]: Start difference. First operand 485 states and 1671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:53,830 INFO L93 Difference]: Finished difference Result 788 states and 2616 transitions.
[2022-02-09 02:20:53,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:53,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:53,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:53,831 INFO L225 Difference]: With dead ends: 788
[2022-02-09 02:20:53,831 INFO L226 Difference]: Without dead ends: 589
[2022-02-09 02:20:53,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:53,832 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:53,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 75 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states.
[2022-02-09 02:20:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 461.
[2022-02-09 02:20:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 3.4413043478260867) internal successors, (1583), 460 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1583 transitions.
[2022-02-09 02:20:53,838 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1583 transitions. Word has length 25
[2022-02-09 02:20:53,838 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:53,838 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1583 transitions.
[2022-02-09 02:20:53,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1583 transitions.
[2022-02-09 02:20:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:53,839 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:53,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:53,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720
[2022-02-09 02:20:53,839 INFO L402 AbstractCegarLoop]: === Iteration 722 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -116588331, now seen corresponding path program 717 times
[2022-02-09 02:20:53,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:53,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943786129]
[2022-02-09 02:20:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:53,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:53,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:53,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943786129]
[2022-02-09 02:20:53,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943786129] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:53,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:53,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:53,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310070878]
[2022-02-09 02:20:53,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:53,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:53,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:53,958 INFO L87 Difference]: Start difference. First operand 461 states and 1583 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:54,049 INFO L93 Difference]: Finished difference Result 716 states and 2352 transitions.
[2022-02-09 02:20:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:54,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:54,051 INFO L225 Difference]: With dead ends: 716
[2022-02-09 02:20:54,051 INFO L226 Difference]: Without dead ends: 533
[2022-02-09 02:20:54,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:54,051 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:54,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 76 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states.
[2022-02-09 02:20:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 405.
[2022-02-09 02:20:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.344059405940594) internal successors, (1351), 404 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1351 transitions.
[2022-02-09 02:20:54,057 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1351 transitions. Word has length 25
[2022-02-09 02:20:54,057 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:54,057 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1351 transitions.
[2022-02-09 02:20:54,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1351 transitions.
[2022-02-09 02:20:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:54,057 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:54,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:54,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721
[2022-02-09 02:20:54,057 INFO L402 AbstractCegarLoop]: === Iteration 723 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:54,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2023474987, now seen corresponding path program 718 times
[2022-02-09 02:20:54,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:54,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742577701]
[2022-02-09 02:20:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:54,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:54,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:54,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742577701]
[2022-02-09 02:20:54,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742577701] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:54,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:54,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:54,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785196520]
[2022-02-09 02:20:54,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:54,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:54,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:54,178 INFO L87 Difference]: Start difference. First operand 405 states and 1351 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:54,250 INFO L93 Difference]: Finished difference Result 627 states and 2070 transitions.
[2022-02-09 02:20:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:54,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:54,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:54,251 INFO L225 Difference]: With dead ends: 627
[2022-02-09 02:20:54,252 INFO L226 Difference]: Without dead ends: 361
[2022-02-09 02:20:54,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:54,252 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:54,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 73 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states.
[2022-02-09 02:20:54,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361.
[2022-02-09 02:20:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 3.275) internal successors, (1179), 360 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 1179 transitions.
[2022-02-09 02:20:54,256 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 1179 transitions. Word has length 25
[2022-02-09 02:20:54,256 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:54,256 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 1179 transitions.
[2022-02-09 02:20:54,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 1179 transitions.
[2022-02-09 02:20:54,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:54,257 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:54,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:54,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722
[2022-02-09 02:20:54,257 INFO L402 AbstractCegarLoop]: === Iteration 724 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash -973336397, now seen corresponding path program 719 times
[2022-02-09 02:20:54,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:54,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005094484]
[2022-02-09 02:20:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:54,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:54,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:54,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005094484]
[2022-02-09 02:20:54,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005094484] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:54,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:54,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:54,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51658141]
[2022-02-09 02:20:54,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:54,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:54,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:54,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:54,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:54,375 INFO L87 Difference]: Start difference. First operand 361 states and 1179 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:54,458 INFO L93 Difference]: Finished difference Result 488 states and 1563 transitions.
[2022-02-09 02:20:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:54,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:54,459 INFO L225 Difference]: With dead ends: 488
[2022-02-09 02:20:54,459 INFO L226 Difference]: Without dead ends: 313
[2022-02-09 02:20:54,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:54,460 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 77 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:54,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 66 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:20:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2022-02-09 02:20:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313.
[2022-02-09 02:20:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 3.1378205128205128) internal successors, (979), 312 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 979 transitions.
[2022-02-09 02:20:54,463 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 979 transitions. Word has length 25
[2022-02-09 02:20:54,463 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:54,463 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 979 transitions.
[2022-02-09 02:20:54,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 979 transitions.
[2022-02-09 02:20:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-02-09 02:20:54,464 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:20:54,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:20:54,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723
[2022-02-09 02:20:54,464 INFO L402 AbstractCegarLoop]: === Iteration 725 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] ===
[2022-02-09 02:20:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:20:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1590859755, now seen corresponding path program 720 times
[2022-02-09 02:20:54,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:20:54,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875218425]
[2022-02-09 02:20:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:20:54,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:20:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:20:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:20:54,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:20:54,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875218425]
[2022-02-09 02:20:54,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875218425] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:20:54,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:20:54,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 02:20:54,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353382600]
[2022-02-09 02:20:54,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:20:54,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 02:20:54,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:20:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 02:20:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:20:54,587 INFO L87 Difference]: Start difference. First operand 313 states and 979 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:20:54,654 INFO L93 Difference]: Finished difference Result 312 states and 978 transitions.
[2022-02-09 02:20:54,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 02:20:54,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-02-09 02:20:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:20:54,655 INFO L225 Difference]: With dead ends: 312
[2022-02-09 02:20:54,655 INFO L226 Difference]: Without dead ends: 0
[2022-02-09 02:20:54,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-02-09 02:20:54,655 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 48 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:20:54,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 59 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:20:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-09 02:20:54,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-09 02:20:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-09 02:20:54,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25
[2022-02-09 02:20:54,656 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:20:54,656 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-09 02:20:54,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:20:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-09 02:20:54,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-09 02:20:54,658 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining)
[2022-02-09 02:20:54,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining)
[2022-02-09 02:20:54,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724
[2022-02-09 02:20:54,662 INFO L732 BasicCegarLoop]: Path program histogram: [720, 1, 1, 1, 1, 1]
[2022-02-09 02:20:54,664 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 02:20:54,664 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 02:20:54,665 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:20:54 BasicIcfg
[2022-02-09 02:20:54,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: Toolchain (without parser) took 203967.54ms. Allocated memory was 178.3MB in the beginning and 957.3MB in the end (delta: 779.1MB). Free memory was 137.7MB in the beginning and 713.3MB in the end (delta: -575.6MB). Peak memory consumption was 205.8MB. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.52ms. Allocated memory is still 178.3MB. Free memory was 137.6MB in the beginning and 136.0MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: Boogie Preprocessor took 12.35ms. Allocated memory is still 178.3MB. Free memory was 136.0MB in the beginning and 135.2MB in the end (delta: 789.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: RCFGBuilder took 169.21ms. Allocated memory is still 178.3MB. Free memory was 135.1MB in the beginning and 126.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L158 Benchmark]: TraceAbstraction took 203754.10ms. Allocated memory was 178.3MB in the beginning and 957.3MB in the end (delta: 779.1MB). Free memory was 126.0MB in the beginning and 713.3MB in the end (delta: -587.3MB). Peak memory consumption was 193.3MB. Max. memory is 8.0GB.
[2022-02-09 02:20:54,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Boogie PL CUP Parser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 27.52ms. Allocated memory is still 178.3MB. Free memory was 137.6MB in the beginning and 136.0MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 12.35ms. Allocated memory is still 178.3MB. Free memory was 136.0MB in the beginning and 135.2MB in the end (delta: 789.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 169.21ms. Allocated memory is still 178.3MB. Free memory was 135.1MB in the beginning and 126.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 203754.10ms. Allocated memory was 178.3MB in the beginning and 957.3MB in the end (delta: 779.1MB). Free memory was 126.0MB in the beginning and 713.3MB in the end (delta: -587.3MB). Peak memory consumption was 193.3MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 25]: assertion always holds
For all program executions holds that assertion always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 13 procedures, 58 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 203.6s, OverallIterations: 725, TraceHistogramMax: 1, PathProgramHistogramMax: 720, EmptinessCheckTime: 1.7s, AutomataDifference: 88.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75990 SdHoareTripleChecker+Valid, 55.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75990 mSDsluCounter, 103493 SdHoareTripleChecker+Invalid, 46.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128405 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110121 IncrementalHoareTripleChecker+Invalid, 110131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 37171 mSDtfsCounter, 110121 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5775 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 5045 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 58.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4461occurred in iteration=0, InterpolantAutomatonStates: 5775, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.0s AutomataMinimizationTime, 725 MinimizatonAttempts, 806803 StatesRemovedByMinimization, 714 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 89.7s InterpolantComputationTime, 18125 NumberOfCodeBlocks, 18125 NumberOfCodeBlocksAsserted, 725 NumberOfCheckSat, 17400 ConstructedInterpolants, 0 QuantifiedInterpolants, 423525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 725 InterpolantComputations, 725 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-09 02:20:54,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...